They don't help matters by continually moving or removing their pages where people could look up serial numbers and by giving conflicting information.įrom my own calculations though, your guitar would have been made in Oct 1981 and that would tie in with the production timespan for the L-15A. It seems to have been designed to deliberately confuse customers. I still don't see the reasoning behind it. Yamaha has one of the worst serial number systems I have ever come across. Welcome to the forums! That is indeed an interesting first post *First post, so I thought I would make it a good one. I purchased it used from a friend of my girlfriend in 1987 or 88. So, was it made prior to 1978 or was that serial number format used after 1976? On the Yamaha site, it says that 7-digit serial numbers were used in Taiwan between 1967-1976.

The serial number lookups all state that guitars built in Taiwan (which mine was) have an 8-character serial number. According to another post here, the L-15A was produced between 1978-1984.

Aria guitar serial number lookup