Hi,
    I have aquired a Sigma Martin Guitar Labled SN 901029 and on the body, behind the Neck it says .. DR35N .. Looked up Martin Guitars on Ebay.. and some other places.. and some pics.. it looks like the Brazilian Rosewood backing.. but all that I've read about The "Sigma" Marked Martins is there' like a Knock off That Martin had Made from Japan,.. on the inside of the Guitar it is Marked Nazereth PA, or Narath PA.. USA.. somethin' like that...
HELP ANY INFORMATION WOULD BE HELPFUL

**Cindy**