Vintage, Unopened Falcon "The Mallard L.N.E.R." Steam Engine Train Jigsaw Puzzle

Here is a Vintage, New/Unopened Falcon Games Limited "The Mallard L.N.E.R." Steamtrains 300-Piece Jigsaw Puzzle, Made in England. It probably dates from the 1980s and features the colorful Blue Mallard steam engine with train cars chugging its way through the countryside with a policeman perched atop an old-style bicycle alongside. Measurements will be approx. 20" x 14" when completed. The "Chessex" sticker on the back is the store where the puzzle was original purchased. NOTE: The puzzle is still-sealed, but the cellophane outer wrap has come open in a few places, and the box has a dent at the top of the lid, as well as some corner wear and the remnants of a couple price tags. Please see pics and excuse the reflections. Item would make a wonderful gift or addition to your own collection!