This was the 1940s and 1950s VCR / Home Entertainment system.  It is stamped Sawyer’s View Master with patent number of 2,189,285 that dates to 1939.  The circular cards had 7 three dimensional pictures in black and white and Kodachrome color.  When card is inserted at top, photos are displayed and changed with side slide switch.  Included are Hopalong Cassidy staring William Boyd with Topper his horse with copyright of 1950.  Also included is Snow White and the Seven Dwarfs with story brochure to read while watching each of the seven slides and a copyright date of 1946.  All items are in excellent condition.  Collectors of antique movie memorabilia will find this a highlight to their collection.