The magnet test doesn't work for Supra's. The other alternative to brass is aluminum. See? As far as dating, if it has a red felt ball bat muffler it's a later one. Round knob would be earlier.

Small round knob. Plan to remove all lugs for proper detailing and maybe try the scrape test.

Magnet test won't work. Magnet won't stick to brass or aluminum. Weigh it, if it's around 9 pounds, it's brass. Or use the afore mentioned method, and check the inner edge of a lug hole.

Supraphonics will always pass the test since both brass and aluminum are non magnetic.You can use a magnet to determine if you have COS or COB rims.If you find a supra thats magnetic its either a phony or if its real,one of the rarest drums on the planet.

Steve B

Okay, been busy and yet to confirm by weight or gouging, but the question still remains; how do I date it? And no, I ain't bringing it flowers. Appreciate the responses though, learning alot on here!

Post some pictures.......................

Okay, just took these quickly if they're any help...

That drum is from 1969....LARGE round knowb muffler and P-83 throwoff. I have one just like it. Wonderful drum -rare Supra in that they were only like that for just a little over one year. Doesn't really make them any more valuable, though

No serial#, (otherwise I'd have referenced it). Yes, crimped snare beds...