Pete Deksnis's site has a picture of the RCA 19" GP22 version which looks like the one in the photo. Unfortunately his site is currently unavailable. To me the set in the Raytheon brochure on TV History looks like it has the decorative screen, my guess is it is RCA's 19" version of the 15GP22. Hard telling how many months in advance the glamor shot had to be made to meet publishing deadlines. Wonder what ever happened to that set?
Phil