Featured this week for Ruby Tuesday is a 3D Vistascreen Viewer for viewing pictures in stereo. Vista was a competitor of the more well known Viewmaster system. I have a small collection of both the Vista slides and Viewmaster viewers, reels and albums which you can see below, which I have been collecting for a number of years now.
Why not join in and post a Ruby Tuesday picture yourself, the rules are simple. Just post a picture with red in it, but it must be one of your own and it can be of anything you like. For more details hop over to The Teach at Work of the Poet and check out the blogroll.