American whaling bark John and Winthrop (1876) in 1911

Official number 75841. Call sign J.R.S.M. Rigged as a bark. Gross tonnage 338 tons, net tonnage 321 tons and as dimensions 114.4 x 28.5 x 16.2 feet. Crew 35 men. Built in 1876 at Bath, Maine. Homeport San Francisco, California, USA.  

Source

Forthy-third annual list of merchant vessels of the United States with official numbers and signal letters and lists of vessels belonging to the United States Government with distinguishing signals for the year ended June 30, 1911.