by Ted Grumbine
Maryland Midland Railway GP38-3 puzzle, based on an original photo by Ted Grumbine (photo copyright Ted Grumbine -- used with permission). Photographed at Thurmont, Maryland, June 12, 2020.
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.