Floyd Clymer, Album of Historical Steam Traction Engines, Bonanza Books, 1959
The Best Mfg. 110 horsepower road engine. Drive wheels were eight feet in diameter and both axles were sprung. Said to be capable of 2 1/2- 3 1/2 mph- with or without a load. Below, probably moving along at that breakneck pace with 65 tons of logs.