Bought a what looks to be lightly used 044 yesterday from an older gentleman who gave me his original receipt and what looks to be 20 years worth of service records where he took it in every year to have it looked over and tuned up. It is a red lever, metal tag saw with a s/n of X129584701. It runs and cuts great and for the saw, 4 bars, 9 chains and all the paperwork I think I got a great deal at $350. Can anyone give me any info based on the s/n? From all I’ve read it looks to be very close to the cutoff from 10-12mm.