Hemingray 40

Region: North America
[[ Insulator ]]
Type: Telegraph/Telephone
Material: Glass
Style code: CD-152
Maximum Power: 5,000 volts
Manufacturer: [[ Hemingray Glass Company ]]
Production Start: 1910
Production End: 1921
Rarity: Extremely Common
Specific Object
Date Made: 1910-1921
Specific Object Condition: Excellent

A Hemingray 40 is a pin type [[ insulator ]] that was used on the telegraph system. It was mass produced from 1910 to 1921, and replaced in favor of the Hemingray 42.