A Side: ASCAP Jobete Music Company, Inc., and Black Bull Music, Inc.
B Side: ASCAP Berna Music, Inc.
"KENDUN" is machine-stamped in the dead-wax on both sides. Stamp is partial on the A Side and more complete on the B Side. Stamp is followed by what appears to be a handwritten G or C on both sides, and is also followed by a hard to read set of etched initials on the A Side.
There are exact counterfeits that were sold by Cisco in Japan with different dead-wax etchings and no KENDUN stamp.