Like what I make? Want fewer sponsorship ad reads? Consider contributing to my Patreon at https://patreon.com/OurOwnDevices NOTE: at 11:49 I state that the close-up attachment was for taking photos at ranges of 30-50 feet; I should have said 25 to 59 inches. The Talking Viewmaster was introduced by GAF in 1970 and used miniature gramophone records to pair short sound clips with the regular Viewmaster stereo images. Sound quality in early models was poor, but GAF continually improved the technology, with the last iteration of the Talking Viewmaster appearing in 1997. SOURCES: https://www.vmresource.com/manuals/index.html https://www.mentalfloss.com/article/84549/chakka-chhh-hidden-history-view-master https://www.ohs.org/blog/ohs-view-master-collection.cfm https://phsc.ca/View-Master.html https://3dstereo.com/collections/history-1 https://ca.fabtintoys.com/view-master/ https://news.google.com/newspapers?id=alBIAAAAIBAJ&sjid=Z_0DAAAAIBAJ&pg=3154%2C7249326 https://www.stereoscopy.com/tru-vue/truvuestory.html