by Bob Avery
Direct Rail Services (DRS) Class 37 puzzle, based on an original photo by Bob Avery (photo copyright Bob Avery -- used with permission). Photographed at Polmont, Scotland, United Kingdom, April 6, 2007.
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.