here's my smaller Dayton grinders for your thread to show the tag being all red instead of red/black. i think both of mine are from the 60's and 70's, but not sure.
by the way your 1 HP Dayton grinder looks awesome.
Drivesitfar, those are nice grinders. I didn't really need a ten inch grinder last year when I found this one. It was just in better shape than the rough block grinder I went to look at. Of course, more is sometimes better. It's my first grinder, and I couldn't be happier with it.
I should clarify about the red and black tag. The other tags I'm referring to that had a red bottom section were the same shape with the same layout as mine. They also still had a black center section. They were divided by the unpainted lines that run all the way across horizontally. So red on top, black in the middle, and more red on bottom.
Dayton seems to have had a variety of shapes and color schemes on their name plates over the years. I don't know if they were era specific, if they overlapped, or certain models got certain plate designs.
I believe I have the same as the OP, it's a 10" model and yeah talk about power! I replaced the bearings in mine (6205 btw) and fixed the centrifugal (sp) switch, one of the tabs wouldn't make contact so I soldered a metal disc on one of the pads. Works perfect, quiet and spins forever!
According to mr google, 244 in 1972 dollars is equivalent to 1388 in 2014 dollars, my $40 was well spent!
$40 is a "you ****" price. I paid $225, which I feel may have been a little high, what with missing a tool rest and eye shields. It just ran so nice, and did take forever to spin down. Of course, besides what are on it in the picture I also got an unused 60 grit wheel, an unused fine wire wheel, and 4 or 5 black and decker buffing wheels (which I probably won't use on the grinder). All of which made me feel better about the price, and I will eventually get around to making the parts it's missing.