Rare Antique HW Sullivan London Electric Telegraph Terminal Test Posts

Description

Rare antique HW Sullivan London England electric telegraph key terminal test posts.

British company, originally founded by Herbert Watson Sullivan in 1897, that specialized in manufacturing high-precision electrical laboratory equipment, particularly known for producing telegraph signaling instruments like Wheatstone and Kelvin bridges, and later focusing on other precision electrical testing equipment; the company was based in London, England.

Condition

Good Overall - Gentle wear

Dimensions

Long - 12" x 3" x 5.25" / Short - 9" x 3" x 5.25" (Width x Depth x Height)