by Matt Coffin
Bessemer & Lake Erie Railroad SD40T-3 puzzle, based on an original photo by Matt Coffin (photo copyright Matt Coffin -- used with permission). Photographed at Deloit, Iowa, October 3, 2018.
The "Easy" version of the puzzle has about 100 pieces, "Medium" has about 200 pieces, "Hard" is about 300 pieces. For the Online puzzles, see the Online Puzzle Tips.