Aug 10, 2006 Antique and Vintage Saxophones. I have a Dolnet Saxophone, I believe it is an Alto but I can't find a serial number. Dolnet M70 Tenor Sax Serial Number 88303 (1970 - 1980) $2500 February 2012 - Price Cut to $2150 The serial number and the model number is engraved under the low D#. Dolnet History. However, that the serial number ranges incorporate the full production of ALL instruments produced by Dolnet, not just saxophones. Imperium Galactica 2 Vista Patch Programs there. DOLNET: Saxophones See. If you decided to play around with the serial numbers on http. If you ask them, EXCESSIVELY NICELY, about a serial number off.