I'm sure this has been discussed at length here, but I am not able to figure out where using the search function. I have a C-1 Martin on the way, and the seller was told that it was made in the 40s or 50s. From what I have read, one can determine that the stamp on the back of the headstock disappeared about 1932, bar frets until end of WWII, and the "Made in the USA" portion of the inside stamp disappeared about 1961. So this one has t-frets and no "made in the USA", so it is between '45 and '61. Between those years, what features can be used to date a Martin? Shops often specify 40s or 50s, but how do they tell? Sorry for the redundancy if this has been thoroughly discussed previously.
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