This vintage acoustic Goya guitar of mine was made by Levin in 1958 as best I can tell. The label on the inside says, "Model No. M-24 Serial No. 376222 Made by A.B. Herman Carlson Levin, Gothenburg, Sweden." I believe you can use the "Locksley Serial Numbers List" for this guitar because of the addressing on the label. If you bought this guitar in Europe it would have the "Levin" logo on it, a different model number and the city would be spelled "GOTEBORG." My guitar is a "Grand Concert" model as indicated by the 14 frets neck length to the body. There's one shown on page 9 of my 1962 Goya Guitar Catalog. "Click here" to see it and another one on page 9 of my 1964 catalog as well "Click here" for that page. More information about the Levin company can be found on my "Goya Information" page. If you have any additional information about this guitar model or Levin please email me. Thanks