Jeff has the serial number records, which is what I was trying to get to - he's the current owner of Matamp and has an amazing grip of the Brand history - not all the numbers are to hand, before anyone gets carried away - without the number, its just another amp - the EBay pics gave a printed serial number of 250, from which I'm assuming that the 100 heads were different numbers to the 200s (of which I had two, both of which had painted numbers, one of which I'm fairly sure, was 325 - long time ago now)- I currently have a couple of 300 Matamp original slaves, of which there were only about 20 made (I know, roughly, the whereabouts of another two or three, one of which is in the USA)....the early stuff is nice, but getting well overpriced for what it is.
Before you start ringing Jeff, he's a busy bloke...just sayin'......