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,
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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.