Let me clarify & correct my previous post, since I got off my ass & checked my catalog (1964):
The catalog drumsets are has been said: the Downbeat, (20,12,14,4x14 Downbeat), the Super Classic(22,13,16,Supra), the Club Date,(20,12,14,Pioneer).
Individual drums are listed as follows:
"Super Classic" tom toms, 8x12,9x13,14x14, 16x16,16x18, 18x20. These have what are called "twin 'Classic' tension casings".
"Club Date" tom toms, 8x12,9x13,14x14, with "center row self-aligning tension casings".
"The Ludwig Classic" bass drum, 12x18,14x18, 12x20,14x20,14x22,14x24, with "large twin 'Classic' self-aligning tension casings".
"The Ludwig Century" "separate tension" bass drum, 14x20, 14x22, 14x24, 14x28, with "NEW streamlined self-aligning casings".
So....your 20" bass is a "Classic", your 12" "tom tom" with the "center row self-aligning tension casings" is a Club Date, your 22,13,16 kit is a "Super Classic" drum set (have you got a Supra?), & your 20,13,16 configuration is a set of Ludwig drums. I hope I got this right this time......marko