The camera Timmy wins is a generic brand, i.e. no distinguishable trademarks, of twin reflex with flash attachment. It is a camera that has two lenses on the same focal length. The upper lens acted as a viewfinder for spotting the object of the picture, and the lower lens served to expose the film to the object.
This is the fourth of 24 appearances Robert Foulk makes throughout the entire run of the series. His first appearance occurs in Sale of Lassie (1954) from season one playing Jeff Miller's neighbor Mike. Here he is playing the role of Sheriff Miller, a role he plays multiple times through season 8.