19th Century Electrical Cable Gauge Salesman Sample film canister Framed ad for Vacuum Oil

Framed ad for Vacuum Oil Company for their Gargoyle brand

Oversize micrometer on a sturdy tin base

AB - 103847 - 072621

TA - 100721 - 103969

The fixture is fitted with three etched glass shades

19th Century Electrical Cable Gauge Salesman Sample film canister Framed ad for Vacuum Oil1878; New England Telephone & Telegraph Company Boston, Massachusetts. Glazed wooden display case produced for New England Telephone & Telegraph, housing a graduated set of electrical cable gauge samples used for sales presentation and technical reference. Each cylindrical sample represents a different wire size, topped with exposed conductor material and accompanied by engraved metal plates denoting pair counts and gauge specifications. The samples