Heinemann Electric Co.
Trenton, N.J., U.S.
||48 DC 3 S
||Stamped on the side of one of the relays
||Stamped on the hinged part of the relays
overall: 2 in x 2 1/4 in x 2 in
There are two power relays each with a white label and blue writing. Each has a metal case, and six insertion pins on one side.
Gift of Dave Babcock