When I spoke to Anderson at Modulus, Modulus did not use serial numbers until about 1988/89.. Before then most had 4 digit production codes for factory use. Mine has neither. There are no serial numbers of any kind. The only number on mine is the patent number on the headstock. From what Gary told me, that would mean it was a custom order 1 off from very late 70's or early 80's.
When the company was sold in the late 80's, most of the records of production (According to Anderson) were not forwarded on and subsequently lost. There is no real record of what was made and how many
When the company was sold in the late 80's, most of the records of production (According to Anderson) were not forwarded on and subsequently lost. There is no real record of what was made and how many

