Hey Geoff, welcome to the club. Alembic serial numbers start with the year of manufacture, so you appear to have an instrument built in 1984. The S indicates that you have a Spoiler. I suspect there is one more digit in your serial number. It may have worn down as serial numbers from this era were impresssed into the neck at the 24th fret. 343 would be MUCH earlier than 1984. I have a 1983 Electrum guitar that is serial number 2780. Alembics are numbered in sequence from the first one built on. So your's is probably 3,43(missing #). If you figure out the number, you can post it in the Owning an Alembic > Serial Number Request section and Mica will look it up and post info when she can.
Bill, the guitar one
(Message edited by lbpesq on February 12, 2007)