XPLRN
Dad ^^^^ wouldn't understand the CAD!!! :-)
Sorry to ruin your fun Myron. That was an easy one for most Poulan nuts. It also helps that there was a Dayton 4Z252 on feebay a week or two ago. We talked about it here, and LeeHa ended up with it. There was also "dayton4z252" in the code for your pics. It shows up when a fellow quotes your posts with the pics in them...
I've been messing with old saws off and on since the mid-1980's, but CAD has only really had a grip on me since 2005 or so...
That's funny.....learn something new every day.......I always title my Photobucket albums with the make/type of saw so I can keep the pictures somewhat organized.
Well your past decades of messing with old saws were nothing but fuel for your current CAD grip!!

My CAD comes from my family past with my dad being a lumberjack in his younger years and then always having a chainsaw around while I was growing. Luckily I've got his last saw and hope to collect up three more representative models of saws I know he owned. Hopefully I'll get them all collected up while I'm still able to handle them. The first chainsaw he ever owned was a big dog ; http://www.arboristsite.com/chainsaw/173584.htm