Memory Lane Classics in Grand Rapids Ohio sells the reissue Diamond #61 1" x 3/16 chain. Price is $45.00. I see these on eBay selling for $60 and up. Their phone # is 419-832-3040.
Memory Lane mostly sells balloon tire parts.
Scott "OK, I am caught...I like balloon tire bicycles too" McCaskey Scenic Downtown Dalworthington Gardens, TX