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Old 2nd Jan 2019, 1:17 pm   #1
DKD Contempra
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Default What does this stamped marking mean?

Can anyone tell me what this marking means?
It is on the bottom of a vintage GPO 332.
I don't have the phone yet, the seller sent me these pictures.
The phone should be delivered any day now.

Thanks
Doug
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Old 2nd Jan 2019, 3:06 pm   #2
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Default Re: What does this stamped marking mean?

approved??

2107 code of the inspector?
 
Old 2nd Jan 2019, 9:53 pm   #3
Pellseinydd
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Default Re: What does this stamped marking mean?

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Originally Posted by Aitor Eneko View Post
approved??

2107 code of the inspector?
I'd wait and see what the phone actually is - various internal markings. I suspect that it isn't a GPO one but one supplied/used on a PAX system or an export model. Interesting that it has a a black pvc curly handset cord - unlikely with a GPO one. Also the base appears to have no GPO markings on it - again unusual for a GPO one. Also note three black rubber feet - a GPO phone would have gone back for repair at a local 'wipe-up' depot or back to Factories Dept then come out with a matching set.. I would suspect that bits have been changed over the years whilst in the preservation sector and the phone to be made to look like one from the GPO. The difficulty is that as the GPO was the major customer for most of the UK manufacturers, those supplied for use on PAXs were still called 'Tele No 332' on the diagram inside but didn't have the GPO markings on the base such as 'Batch Sampled' with the inspectors number.

Ian
ex-GPO Telephones 1950/60's
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Old 4th Jan 2019, 3:47 am   #4
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Default Re: What does this stamped marking mean?

its a re-pro GPO phone made in India
sadly not made in 1938 more like 1988-1989

Last edited by BRASSBITS; 4th Jan 2019 at 3:56 am.
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Old 4th Jan 2019, 5:08 am   #5
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Default Re: What does this stamped marking mean?

I don't think it is as the bases are different on those and they usually have ATM-pattern dials, though obviously they are easy to change. In another thread there's a picture of the handset markings and they look correct, something that the Indian makers always get wrong. That thread also informs us that this instrument has some provenance.

This 'phone has certainly had parts changed, for instance the dial is a number 12 and I don't think they came in 'til after the war.

It will certainly be interesting to see just what's what when the OP gets hold of it.

Last edited by ThePillenwerfer; 4th Jan 2019 at 5:14 am.
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Old 4th Jan 2019, 12:48 pm   #6
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Default Re: What does this stamped marking mean?

Quote:
Originally Posted by BRASSBITS View Post
its a re-pro GPO phone made in India
sadly not made in 1938 more like 1988-1989
I have just dug out my red Indian 300
and I retract my previous statement about the ops phone still it will be interesting to hear more about it
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Old 4th Jan 2019, 3:23 pm   #7
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Default Re: What does this stamped marking mean?

Well the phone finally arrived. Here are some of the pictures that will tell it's story. I will post more pictures later of all the different part numbers.
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Old 4th Jan 2019, 3:51 pm   #8
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Default Re: What does this stamped marking mean?

The stamp saying 332CB PL40/1 on the chassis means that it's a 332 Central Battery (ie no dial) made by Plessey - Ilford, Essex in 1940 to the Mark I design.
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Old 4th Jan 2019, 3:58 pm   #9
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Default Re: What does this stamped marking mean?

What would the drawer have been used for without the dial? The standard domestic models used it to hold a dialling codes booklet.
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Old 4th Jan 2019, 4:37 pm   #10
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Default Re: What does this stamped marking mean?

Quote:
Originally Posted by paulsherwin View Post
What would the drawer have been used for without the dial? The standard domestic models used it to hold a dialling codes booklet.
The pull-out-drawer was "not fitted to telephones after June 1940" according to my 1944 copy of the Vocabulary of Engineering Stores. Fitting resumed after the war.

I doubt that the mirror with the GPO logo was fitted during the war either - to my knowledge they were pre-war only item. As I mentioned previously, the base I suspect is one from a phone supplied for use on a PAX (even those often had '332' on the chassis and a 'Telephone 332' diagram on the inside of the of the base).

The GPO stampings were 'Batch Sampled' with the GPO inspector's number below in the rectangle.

I also doubt that the telephone would have had the curly black handset cord during its GPO days. The GPO were fussy about things being correct in my days with them in the 1950/60's.

It is difficult these days to know to know how original a telephone is - obviously three of the feet aren't original. Must have a look at one of my Tele 332CBs - still new in its original box -never been used.
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Old 4th Jan 2019, 5:09 pm   #11
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Default Re: What does this stamped marking mean?

Quote:
Originally Posted by ThePillenwerfer View Post
The stamp saying 332CB PL40/1 on the chassis means that it's a 332 Central Battery (ie no dial)...
Not sure this means the phone is a 'bitsa', contrary to the feet and extensible flex. I have a Tele 710 which has a dial, and on which the base is stamped 'CB'. As I can establish the provenance of the instrument, I queried this, as I thought telephones would've been sent off to Wales or wherever to be 'modded' pending re-issue, and with different labels added.

Not necessarily so! Evidently some were modified 'in-situ' from CB to automatic and, one presumes, the only record of the mod would be with the GPO engineer who did it.
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Old 4th Jan 2019, 5:47 pm   #12
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Default Re: What does this stamped marking mean?

Here more pictures of marking on the other parts.
To me it's all good, it will look good in my collection.

Thanks for all the help.

Doug
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Old 5th Jan 2019, 10:29 pm   #13
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Default Re: What does this stamped marking mean?

Quote:
Originally Posted by russell_w_b View Post
Quote:
Originally Posted by ThePillenwerfer View Post
The stamp saying 332CB PL40/1 on the chassis means that it's a 332 Central Battery (ie no dial)...
Not sure this means the phone is a 'bitsa', contrary to the feet and extensible flex. I have a Tele 710 which has a dial, and on which the base is stamped 'CB'. As I can establish the provenance of the instrument, I queried this, as I thought telephones would've been sent off to Wales or wherever to be 'modded' pending re-issue, and with different labels added.

Not necessarily so! Evidently some were modified 'in-situ' from CB to automatic and, one presumes, the only record of the mod would be with the GPO engineer who did it.
The conversion from CB to auto was often done in the field. For instance on converting a CB exchange to automatic, fitters would go around visiting subscribers fitting the dials before the day of change-over as the 'converted' phone would still work on a CB exchange. Also on PMBXs at one time, they were only allowed one extension phone with a dial for each exchange line they had (for plugging through for night service), the rest of the extensions having no dials. As time went by more and more phones were fitted with dials rather than the expense of a new phone. The large PMBX I looked after for some years wouldn't allow 'through dialling' so all phones were fitted with dummy dials. Once the Tele 746 was introduced, the conversion was 'from auto to CB' as a 'Tele 746CB' as such was never supplied from new. I saw a number of exchange conversions in my GPO days as there were still well over 20% of public exchanges which were manual at the time when I started with the GPO in the late 1950's.
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Old 5th Jan 2019, 10:45 pm   #14
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Default Re: What does this stamped marking mean?

Quote:
Originally Posted by Pellseinydd View Post

The conversion from CB to auto was often done in the field.
Thanks for that detailed explanation! It corroborates what others have said elsewhere, and means that the history of my 710 can be charted further.

It was originally one of the telephones at the BBC Exeter MF transmitting station.
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Old 6th Jan 2019, 12:55 am   #15
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Default Re: What does this stamped marking mean?

Quote:
Originally Posted by Pellseinydd View Post
I also doubt that the telephone would have had the curly black handset cord during its GPO days. The GPO were fussy about things being correct in my days with them in the 1950/60's.
Here is the handset cord that was removed from this phone showing the ID tag.
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Old 6th Jan 2019, 1:03 am   #16
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Default Re: What does this stamped marking mean?

It's a genuine GPO cord, but is from the 60s rather than the 40s. It may have been a field repair when the original cord was damaged or just wore out.
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Old 6th Jan 2019, 2:39 am   #17
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Default Re: What does this stamped marking mean?

Gave it a clean up and waiting for the new replacement parts.
I have been told the body is Diakon.
Some before and after pictures.
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Old 6th Jan 2019, 11:41 am   #18
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Default Re: What does this stamped marking mean?

It's cleaning up very well.
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Old 6th Jan 2019, 6:00 pm   #19
DKD Contempra
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Default Re: What does this stamped marking mean?

Quote:
Originally Posted by paulsherwin View Post
It's cleaning up very well.
Thanks, Now to find out what these mean.
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Old 23rd Jan 2019, 1:44 am   #20
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Default Re: What does this stamped marking mean?

Parts arrived for the Ivory GPO phone. Handset cord, feet and Drawer pull.
Cleaned the phone up and replaced the parts.
It displays well.
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