CECIL E. HANSON COLLECTION
ANTIQUE SURVEYING INSTRUMENTS

FOREIGN LEVELS

Troughton & Simms - London,England, ca 1880

Serial Number:
Type: Dumpy Level
Telescope Length:
Spirit level length:
Height:
Weight:
Condition: Good
Box: Yes
Found: 1963 - Tujunga, CA
CEH Inventory# FL2

CEH Notes: WM Gravatt, an Englishman, is credited with the construction of the first Dumpy level in 1845. It was called "Dumpy" because it was shorter than the first Wye level which was invented in 1745.