Hey all. I've had my alembic since 1991 and have no official details about it.im Considering parting ways
with it but it's emotional.
Serial number on the fret is

8784561 usa

Got it due to Jason Newstead and Paolo jnr playing same beast. Any help and info would be amazing

Try posting this request over here: https://club.alembicguitars.net/index.php?board=169.0

Are you sure about that serial number? Could the third digit ('8') actually perhaps be 'S'?

Pictures would be nice - there are people here with deep Alembic knowledge who can tell you a lot about your instrument from good pictures. It could take a while for Mica to look up the serial number, she often waits for a bunch of requests to accumulate and then spends a day or two going through the files and answering them all.