Thanks to Maureen Carney, we have an article that introduces and dates the Sanner Studio Crane. The innovation started in 1948 when former Warner Brothers employee Sidney Sanner got behind an NBC camera for two years to learn the needs of the operator. NBC bought the first four with one going to Chicago, one to Studio 8H, one to The Center Theater and one to The International Theater. CBS bought some too, and they were fine for black and white cameras, but when the TK40s came along a few years later, the Houston Fearless 30B Studio Crane took over. The Sanner in in the middle and the 30B on the right. The article is very rich in detail.
Question to EOAG. In the original openings of See It Now on CBS, is that also this type of crane being used?