[Tractionist]

Bargain! And not without virtue ... e.g.. a nice clear tuning knob!

If you're miles away from home base and your bench - my advice would be to snip off the AF117 screen leads and [assuming you have access to a multi meter] .... check the quiescent - otherwise you may find that the thing is devouring PP9's !!

Plenty of these turn-up in various states of disrepair and therefore you will probably/ultimately find both decent front and rear case/cabinet shells on basket case examples in the fullness of time.

The 'Bush' lettering simply pushes out of the front case shell - and most people remove each character, clean it and then spray it with silver paint. (Carefully gluing silver kitchen foil to each character and then carefully trimming off the excess gives a better result ..... but requires considerable patience.)