Found on the exterior of disk cartridge above the handle.
Serial number
Z 170377
Found on the inside the top of the disk cartridge.
Dimensions
overall: 1 1/2 in x 15 in x 15 in
Description
The record contains a round disk cartridge with a single disk platter . The cartridge can come apart into two pieces, a bottom cover and the disk cartridge. The bottom cover has a stamped date August 5 1976.