Take a magnifier and see if you can read what it says around the grommet! That'll help to I.D. this kit. I just got off the phone with Jess from Steve Maxwell's N.Y. store. He told me he's never heard of 'Drum Master' drums, but that it could be a Ludwig, or Leedy knock-off. Jess said that Ludwig and Leedy etc. manufactured some kits back then and put other companies, and music stores labels on them. Not a lot of those around, but there are some. That kit could be one of those 'music dealer' labelled kits.
I like the tacked toms! Cool, but probably a bee-atch to keep in tune.
John