There does seem to be a market for them - no idea if it's just the "period-correct/authentic" thing, or if some folks actually like them. And if you come up with a set of 110/74 (26/36/46 or 28/38/48) or 130 (39/52) bcd rings, toss 'em my way - I'd like to give 'em a try on my 'bent.

SP
Bend, OR