by John Levai
SEPTA Silverliner IV Set puzzle, based on an original photo by John Levai (photo copyright John Levai -- used with permission). Photographed at Langhorne, Pennsylvania, May 9, 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.