Levin (who owned the Goya name) were bought by Martin in 1975. Goya electrics were made in Japan in the 70’s, moving to Korea in the 80’s. I’m including this category for the MIJ 70’s models, which are high quality and very collectable ‘lawsuit’ guitars.
The 1977 Levin catalog has the Martin name on the last page and lists four models (photos coming soon, I have three in my collection), the GLP, a Les Paul Deluxe copy in gold, white or black, the GST, a natural body 4-bolt Strat copy, the GSG, a cherry SG copy, and the GJB, a sunburst Jazz bass copy with maple fingerboard. These are extremely precise copies, and very high quality instruments. They are very, very uncommon, mainly being sold in Europe and Canada, although not valued by collectors.
The GLP is particularly noteworthy in that few manufacturers copied the LP Deluxe, which at the time was a Gibson oddball with its Epiphone mini humbuckers. Although today it is a well regarded instrument, not least because of its tonal range, at the time it was the poor relation to the Les Paul custom.
This section is very much ‘coming soon’ and I will publish information and photos as they become available. I have a white GLP, a GST and a GSG in the Marshall collection, and I am actively seeking a gold and black GLP and a GJP to complete the set. To illustrate the quality of these instruments, a visiting fellow musician was playing the GST and didn’t realize it wasn’t a F*ender until he looked at the headstock!