During this period Sigma also produced a line of guitars with model numbers starting with 52S: 52SDM-5, 52SDR-7 and 52SGCS-7. 52S guitars had laminate backs, and sides and solid tops. Read more about this topic: Sigma Guitars, Made in Japan Models. The result was Sigma Guitar. The line was discontinued in 2007. Brand then purchase by German Co (Made in China) but cannot be sold in US under this name. Source:wikipedia Guitar dating. Serial Numbers do not provide an indicator of the year in which a particular model was built. Help Dating a Sigma-Martin guitar. Hi I bought an used Sigma-Martin guitar from a friend becouse it sound beautiful! I would like to know if anybody could help me to date this guitar. The model is CG- 1ST or CG-IST (it´s dificult to read) and serial number is: 99090007 - Made in Korea. Here is a link with a demo recording I made using the.

Sigma DR-35

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Sigma DR-35, Made in Japan 1980

I finally managed to find another Japan made Sigma, this time a 1980 Sigma DR-35. It’s a beautiful looking Martin D-35 copy with a 3-piece rosewood back. They are pretty hard to come by these early 1980’s Japan made Sigma’s and sometimes very expensive too, between 500-1500€ depending on the model. I didn’t buy this for myself, I’m way too happy with my Sigma DR-41 at the moment and on top of that I’m actually trying to thin out my Japanese guitar collection. I got it for my friend Wolf who just like me have gone from a pretty solid Gibson obsession to realise that perhaps that Martin sound is not that bad after all. There is something of that punchy mids and clear ringing highs in the Martin sound that these Japanese made Sigma’s have too, after all they were commissioned by C. F. Martin & Co. I thought my Sigma DR-41 was loud and had a very punchy midrange but this Sigma is one step beyond, I guess because of the 3-piece back. I like the highs and the overtones better in mine but still, this is an amazing sounding guitar that I thought long and hard about keeping for myself. I was sure that my Sigma DR-41 was made in 1982 since the serial number starts with E82 but since this Sigma DR-35’s serial number also starts with E82 and came with a receipt that proves that it was sold in September 1980 it must have been made that year, or earlier.

This guitar had apparently been in storage for the last 30 years, since the original owner died and that seems plausible, it’s in really good shape for it’s age.

The classic Made in Japan football stamp, burnt in to the back brace that was used from 1978-1983 on Japan made Sigma’s stating: Sigma Guitars – Made in Japan for – C.F. Martin & Co, just like on mySigma DR-41. The rosewood looks really nice on this Sigma, even better than on mine.

Wolf asked me to install a LR Baggs iBeam in the Sigma before he received it and since I recently installed the LR Baggs Lyrics in my Sigma DR-41 it was a pretty easy task. We actually got to try them both out last Saturday when we played live with Cherry & Wolf at La Sonora, it sounded something like this. I did two tests to make it easier to compare the Sigma DR-35 with the iBeam to the Sigma DR-41 with the Lyrics. They both sounds pretty darn great, but in different ways.

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The original receipt from 26 September 1980. The guitar cost 475 Deutsche Mark which would be around 245€ today and probably a lot more 36 years ago. Taken from my Instagram

Martin Sigma Serial Number