That's why I asked a newbie about his Demetriou to confirm my suspicion - Andreas Demetriou N (for 14th instrument built?)
As in ADA, ADB, ADC, etc... so 14th build would be ADN... no way of knowing how many he built as he is no longer producing and no trace of info...
I'm going to post something relevant to this in a new thread...
Rob - cheers for that... Kev (original owner) emailed me after seeing this and pointed to a US ebay link to some (Schallers) up for sale but I eyeball-stalked at the price ($149) - they were classed as vintage, but what would be a guidline UK price...?