Grosset & Dunlap, New York, 1927 (believe circa 1932).  Hard cover, 216 pages followed by ads.  Red cloth with a few spots on boards; some edge wear, tears/scrapes to cloth along fore-edges of boards, corners bumped and worn with a touch of fraying, spine ends bumped with some wear; some impressions at upper rear corner, green top stain; no jacket.  Binding sound with a slight lean.  Illustrated end papers; black & white frontis; remainder of interior clean and unmarked, some age spotting, smudges and straightened dog ears.  Illustrated by Walter S. Rogers.  A western movie is being shot at the X Bar X ranch, including scenery along Big Bison Trail.  Roy and Teddy Manley are in a few of the scenes.  As well, the boys search for a missing baboon, and an imposter is claiming a ranch hand’s inheritance.