Details
An early 20th Century Clinometer by Crockatt
in mahogany with calibrated brass back plate and further brass plates applied, the makers plate engraved Crockatt CLINOMETER PATT. 5292, the other with accuracy corrections -- 22in. (57cm.) dia
in mahogany with calibrated brass back plate and further brass plates applied, the makers plate engraved Crockatt CLINOMETER PATT. 5292, the other with accuracy corrections -- 22in. (57cm.) dia