Ciceri Smiths patent digital micrometer

Micrometer, Ciceri Smiths patent digital micrometer, brass instrument No 15, in original case.

Details

Category:
Tools of the Trade & Personal Accessories
Object Number:
1987-8384
Materials:
brass (copper, zinc alloy)
Measurements:
installation: 4.75 x 1.75 x 0.75 in.; 120.65 x 44.45 x 19.05 mm
type:
micrometer
credit:
British Rail, Historical Relics