From the prop collection of the Lower East Side Ecology Center: https://www.lesecologycenter.org/programs/ewaste/prop-library/ They also have a ReUse store where you can get vintage and modern day goodies for fair prices Here is a Crescent model C-651 45-only record changer. These were made when the 7" 45rpm record were relatively new and were extremely popular. These 45rpm changers aided in rendering 78rpm records obsolete. The 45rpm record was RCA Victor's competing format to Columbia's Long Play record (which played at 33 1/3 rpm). Both used MicroGroove. RCA offered their own line of 45-only changers. It is physically impossible to use any other type of record that isn't a 7" 45rpm on this changer. Once can stack up to 8-10 45rpm records. When the last record is reached, it would repeat the last record in the stack. Unlike the earlier models, this one uses an Astatic monaural ceramic cartridge as opposed to a crystal cartridge. This may have been original to the changer, as the cartridge still has its stylus guard, and the stylus itself is brand new. If you wish to see more showcases from the LES Ecology Center's prop room, please donate as this covers the rental fees, which will allow me to rent rarer or oddball stuff that is worth showcasing! PayPal: http://www.paypal.me/koishi ... https://www.youtube.com/watch?v=dNQ_GtpdpKY

An oddball alarm clock meant to mimic the look of digital clocks, This is a purely mechanical clock, using a synchronous motor (just like old flip clocks), and a series of gears with notches and bumps. For the display, It uses neon bulbs, which when the bumps make contact with the correct pins, it illuminates the appropriate amount of neon bulbs to display a digit. Just one of many ways to create a pseudo-digital display. ... https://www.youtube.com/watch?v=rRsnOogB4N0