Hello,I am trying to find out more information about my father's guitar and its value and hope someone might be able to help me.I emailed pictures to the Gibson customer care team in US and Europe and was told it was possibly made in 1935 or 1935-41 for the export market, possibly a L-00 sunburst. I have also found a picture online (and I think on the Gibson forum) of a very similar looking guitar called a Trojan for the export market .. http://truevintageguitar.com/1936-gibson-trojan/.Looking at the number - info below - I found a link that listed 136A as being from 1935 but belonging to L-1 model rather than the L-00 ... http://www.guitarhq.com/loo.htmlThe information I have on the guitar is ...HISTORY: It belonged to my father but unfortunately don't know when he bought it. He was born in 1921 in England, so he could have bought it either new or secondhand.NUMBERS: The only number I can see is inside the guitar, up below where the neck joins the body. The number looks like "136 A" printed in black, and then there is a “23” handwritten in red ink. LABEL INSIDE GUITAR: The white guitar label inside the aperture is rectangular, with “MADE IN U.S.A. BY GIBSON, INC. KALAMAZOO, MICH”. PRINTED ON BACK OF HEAD: There is also a “MADE IN THE U.S.A.” stamped into the wood on the back of the head of the guitar, but nothing else.I will attach pictures. Many thanks in advance for any help or advice.