Workers are measuring the diameter of logs and marking the logs with owner’s log mark, using a metal hammer  to press the mark into the logs. This was done to identify logs once they had been sent down river and were retrieved by a mill or factory. Each logging company had their own individual mark, which was registered with the county or state.

Circa 1890-1900. Unknown location.

Photographer was G.H. Rison. originally in History of the lumber industry in the state of New York, by William H. Fox Forest, Fish & Game Commission report, published in 1900.