A micrometer beam caliper made in 1854 by T. F. Chappi for use by W. H. Barlow during his investigations into the strength of beams.
Details
- Category:
- Industrial Metrology
- Object Number:
- 1879-2
- Materials:
- steel, brass and wood
- Measurements:
-
overall: 1.1811 x 15.748 x .7874 in.; 3 x 40 x 2 cm
- type:
- micrometer
- credit:
- Chappe, T.F.
