This 50 year old guitar was inherited from my father in law who lived in Buffalo NY.  I reached out to Larrivee with as much information as I had at the time to see if I could get more information on the guitar. I don't know if he was the original owner or not. Below is an excerpt from the response I received from Larrivee Guitar Services.

The guitar is in good shape for the age. Has some blemishes and two spots on the back of the neck that look like the finish was worn off. I have attached a link to pictures below.



Contact me if interested

Gary


EXCERPT FROM LARRIVEE EMAIL
"HI Gary,

Thanks for including the images. Yes, that is an L-31 built in 1976. No serial number were used until 1977. Those numbers inside the guitar were put there by Kief Music, our Canadian distributor at that time. They were for identification for their purposes. Because we did not use serial numbers at that time. Your father-in-law would have paid about $500 USD at the time for the guitar. Today,...........  It is made from East Indian Rosewood back & sides, BC Sitka spruce top, Honduran Mahogany neck, and African or Sri Lankein ebony fingerboard and bridge. let me know if you have any further questions. - jr."