Rare Vintage Pyrex Glass Standoff Insulator

This is a scarce Pyrex Glass Transmitter Standoff insulator. This Pyrex insulator is patent number 1700066 and is molded in clear glass and has brass top and base. Item measures 7-1/4 inches tall and is 1-1/4 inches in diameter.

Patent number info: PAT 1700066. Filing date: Jul 17, 1924, Issue date: Jan 22, 1929. Made of Pyrex glass and brass.

Condition: Excellent but is missing its top screw and washer.

Shipping is included in the purchase price!