1, a. Skull of the Morse (fossil), seen nearly in front, (Trichecus vi...
Public domain scan of 19th-century zoological illustration, free to use, no copyright restrictions image
1. North American Otter, skull, (Lutra canadensis). 2. Teeth in the up...
Public domain scan of 19th-century zoological illustration, free to use, no copyright restrictions image
Distant view, Fort Lincoln. [Showing a buffalo skull on the prairie in...
South Dakota stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who... More
1a. Skull of the Beaver (Castor fiber), b. Vertical view of the teeth....
Public domain scan of a technical diagram, plan, or drawing, free to use, no copyright restrictions - Picryl description.
Distant view, Fort Lincoln. [Showing a buffalo skull on the prairie in...
South Dakota stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who... More