Smithsonian - National Museum of American History, Behring Center

 
Physical Sciences Collection - Navigation

Browse Makers | Browse Instruments | Index

Back
 

Liquid Compass - click to enlarge

Click image to enlarge.

Liquid Compass

Catalogue number:
PH*337138

Inscriptions:
"RITCHIE BOSTON U.S.A." and "PATENTED APL. 7. 1863. APL. 10, 1866. MAY 12, 1868. JULY 19, 1870" and "9786"

Dimensions:
card diameter 4 inches

Discussion:
The Ritchie ledgers, now held by Ritchie Navigation, indicate that this compass was manufactured on August 11, 1877, and sold to T.S. & J.D. Negus, a New York firm that sold a variety of nautical and optical instruments. It later belonged to the U.S. Coast & Geodetic Survey.

Ref: E. S. Ritchie & Sons, Ritchie’s Liquid Compasses and Nautical Instruments (ca. 1905).

Further Information:

Ritchie
Compass

Back