Taffrail Log

Catalogue number:
TR*308558

Inscriptions:
"WALKER’S PATENT (/) TAFFRAIL SHIP LOG" and "NAUTICAL MILES”"

Discussion:
Thomas F. Walker obtained a British patent for this instrument in 1878, and an American patent in 1881. The U.S. Patent Office transferred this model to the Smithsonian in 1926. It has one dial that reads to 100 nautical miles.

Ref: T. F. Walker, "Ship’s Log," U.S. patent #238,187.

Further Information:

Walker
Log