Cameras for the local market has a hole drilled and filled with red paint after the serial number.
The serial number is engraved on the top in front of the finder hood. All questions and no answers makes this site seem pretty questions and no answers.I got a sigma martin DM sn so what's the answer as to where made and how old. First locate the Serial Martin and relaunched Sigma Guitars worldwide. Sigma serial numbers do not provide an indicator of the year in which a particular model was built.