56 jigsaw pieces which assemble to show a chromolithograph of a train, with all features labeled. Certainly its attention to functional and mechanical detail suggests that it was intended to harness a child's fascination with trains into concrete knowledge; and the fascination was timely, since upon publication of the puzzle the first American transcontinental railroad had been completed only a decade prior. This is Milton Bradley's first edition of the puzzle: later issuances were housed in cardboard boxes, rather than the present wooden one. Box closes with sliding lid, on which is a printed, illustrated label. Possible glue repair to tack down parts of labels found at both the top and bottom of the lid, staining to publisher's advertisement at underside of box, puzzle pieces only glancingly foxed or soiled. A near fine kit overall.