The patent number is located on the bottom of the module next to the connector pins
The serial number is located on the handle
overall: 6 3/8 in x 2 in x 1 in
The record contains 1 module. They have blue metal sides, a clear handle with one orange band and one pink band. There are 18 connector pins at the bottom of the object. There are two circuit boards on each side comprised of various components and wires. The manufacturer of the bottom plastic piece "Winchester El. Inc." is located on the bottom where the connector pins are and so are the words "Monobloc Trademark".