It seems we finally stumped readers with the 'mystery' engine featured in the May/June edition of Steam Traction. We're still waiting for someone to identify the engine, which was apparently being unloaded from a rail car when the photo was taken.
This month's mystery engine comes, as usual, courtesy of JohnSpalding, 112 Carriage Place, Hendersonville, TN 37035 (email@example.com). There's no information on the photograph telling when or where the picture was taken, or what the engine is.
We wish we could see what the engine is belted to, but judging by the mud built up on the rear drivers and front wheels, this engine saw its fair share of work. We'll note the engineer looks well-satisfied with his machine.
As ever, the first person to correctly identify the picture, by mail, gets a free copy of Professor P.F. Rose's Steam Engine Guide. Good hunting, and get those answers in quick.