[Jennings]

Thanks guys...much appreciated info. In fact it prompted me to get the pots out again and put the meter on them, which indeed confirmed that they're roughly 1k (ish) linear taper. Also, as I was cleaning them up a little to test I noticed the plastic moulded part had a logo impressed, and a two digit number. I'm guessing the number is simply a week code, but the logo is clearly Dubilier as predicted!