NOS 1964 Chevy Chevelle 2-groove crankshaft pulley balancer CAC 64 more years ??

Odd thing is, we have several other Chevrolet parts books going up into the the 70's and cannot find this number in any of them. See photos. We treat you like we would want to be treated - you get the actual part shown in the photos, we do not use 'file photos' or just put a GM logo where photos should be.