Go over to the Yahoo delta grinder forum; lots of info there. Looks like the 1957 or earlier model, not the one from the sixties, but there's really not much difference. You definitely want a mag chuck, a Univise, and if you can find it, the secondary swivel table and centers (good luck with that- they are very hard to find). If you can find a Univise and the table/centers, and learn to use it, you have exactly what it's named: a Toolmaker. Literally nothing you can't make or sharpen with it. Decent small surface grinder, too. Lots of manuals online, and they are very complete with full instructions for use (try vintagemachinery). If you can't find manuals elsewhere, I have a full set of pdfs, just ask.