I stopped at flea market/antique/junk place over Thanksgiving holidays. Picked up this saw for $10 thinking it was old enough to have some good steel in it. Also picked up this tooth setting tool.
Sharpened the saw, put just a little set to the teeth and it cuts really well. Then I decided to find out what I could about the saw so I cleaned up the blade and found the etch. Used Brasso on the medallion.
Its a Disston D-23 with 8 ppi. Best I can tell from the Disston Institute website, it is 1940-47 vintage.
Pretty good find. I will use it and pass it on some day.
Brian