Yes, the information was correct; a 237 piece puzzle that is
3.5" x 5.5". This is a Milton Bradley "Premier Miniature Picture Puzzle"
From the Spring/Summer 1933 catalog (Thanks, Anne)
A "pocket edition" innovation in picture puzzles. ... These dainty miniatures will delight the "puzzle fan" by their perfectly cut pieces with their interlocking edges, handsome subjects, and attrative, compact package. Price.. each, $3.00 M1 The Mail Coach M2 Leaving the Encampment M3 The Surprise M4 The Stirrup Cup M5 Snowbound M6 Morning Harbor
The puzzle fits neatly into the black tray and the tray sits snugly
in the top of the box. I have never seen any others of this line.