by Matt Thomas
Delaware, Lackawanna & Western F3(A) puzzle, based on an original photo by Matt Thomas (photo copyright Matt Thomas -- used with permission). Photographed at Spencer, North Carolina, May 30, 2014,
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.