Plate V - Troughton 24-inch theodolite drawn by Caroline Hassler

Plate V - Troughton 24-inch theodolite drawn by Caroline Hassler. In: Papers on various subjects connected with the survey of the coast of the United States” by Ferdinand Hassler. Communicated March 3, 1820. Published in United States” by Ferdinand Hassler. Communicated March 3, 1820. Published in 232-420. Library Call Number QB281.2 .H28 1825.

Photo Category: Treasure - Geodesy