N-TBD: United States (USA)

2 1/2" X 2 1/4" (63mm X 57mm)

 

(around top) RC-1       CONTENENTAL

                  RUBBER WORKS, U.S.A.

(around top)      O A1    PAT. 2,218,497

                                      PAT. 2,304,483

 

Picture courtesy Deborah Booker

2 1/2" X 2 1/4" (63mm X 57mm)

 

(around top) RC-1       CONTENENTAL

                  RUBBER WORKS, U.S.A.

(around top)       3C       PAT. 3,061,667

 

 

Picture courtesy Darryl Wagner

This is a black rubber mid span transposition insulator meant to be mounted in a group of four on a rack to facilitate wire pair cross-over.

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