Sgt. Preston Gets His Man

From eBay listing (Michelle Murray, used with permission): This is a cardboard board game cut off of a cereal box. It's called "Sgt. Preston Gets His Man" and comes with the playing field, a spinner, 4 little pawns and instructions. To make the spinner work, you would put a straight pin through the center and twirl it--there should be a tiny cardboard pointer but that part is missing [in the photos]. The cardboard playing board is about 6" x 6", the spinner is 1 3/4" across, and each little pawn is 1/2" x 1/2". There is no date but it's probably 1950s.