Hoosier makes this tire with a tread pattern very similar to old Dunlops in sizes to for 4.5"-5" rims (they call it "chain link" tread pattern) Its called the Vintage TD tire. I think you could lose that white block lettering pretty easily with some 80 grit sandpaper or coarse ScotchBrite.
Make sure you're sitting down when you check the prices, though.