Corning 2949-75X25 Soda Lime Glass Microscope Slide, Frosted at One End on Both Sides, 75mm Length x 25mm Width x 0.90-1.10mm Thick (20 Boxes of Approx. 72 each): Amazon.com: Industrial & Scientific
Big Lot Vintage Microscope Slides 7 Boxes Still Sealed NOS TURTOX, ESCO CORNING | eBay