Images of View-Master Plant & Equipment 3 Reel Set-Portland 1989 (National Stereo. Assn.) A 3 reel set produced for the NSA's (National Stereoscopic Assn.) National Convention in 1989. Two reels have spectacular sample images from the Programs presented at the Convention. Each image is described in detail in the brochure which is included. The third reel is devoted to View-Master. nterest for View-Master collectors are the images of Florence Thomas with some of her clay figure creations; a picture of the reel mounting machines and other images from scarce View-Master reels.