Plastic clear transparency slides (DeAnza Blvd - Stvns Crk & 280)

Brand new, never used, clear plastic transparency slides. Originally, slides like this were used for giving presentations, but the advent of laptops which were able to project digitally created slides to a large (front of the room) screen, obsoleted the use of transparencies. These might be useful for craft projects. Photographing transparencies is difficult, as they are clear. White tissue separates the transparencies.
Quantity: about 30 transparencies. Approx dimensions each: 8.5" x 10.5" and 8.5" x 11".