Probably the coolest looking Schwinn crankset ever. I'm doing a 73 I think, that has that crankset. The inner ring is rather worn so I'm going to replace it with a Takagi 41 tooth 130 mm BCD. It's on the way to me so I hope it works. I'm debating if I will cut out the addition spokes on the Takagi to make it look stock. I'll have to see it first.
http://www.ebay.com/itm/351621392343?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT
http://www.ebay.com/itm/351621392343?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT