Thanks for the wonderful info and Rose Antique tool site
I checked out the Disston 1918 catalogue, pg 184, and the saw appearing there is identical to the one I have, but the #on the saw is 240 there doesn't appear to be a #240 in the catalogue, I suspect it may have been produced in a previous or later year, what do you think?
Thanks again for the lead I really appreciate it!~!!