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In great condition previously owned by a university professor that took incredibly great care of his equipment and had so much he did not use many things very often.
Rare vintage Corning Glass Works Photochromic Glass sample disk, complete with its original protective plastic presentation case and authentic printed insert. This light-sensitive material showcases classic mid-century optical engineering, transitioning dynamically in tint density when exposed to UV/ambient sunlight.
Technical Details:
- Manufacturer: Corning Glass Works (USA)
- Material Type: Photochromic Glass Sample Disc
- Batch Blend Code: "AT" (Scribed directly onto the glass surface and noted on the card insert)
- Package Includes: Glass specimen, vintage backing label insert, and plastic protective clamshell container.
Physical Condition:
- Glass Surface: Good vintage condition. Features the factory code "AT" neatly scribed on the glass edge. There are exactly 3 light, small cosmetic surface scratches present from storage handling. The disc is completely free of deep cracks, structural chips, or fractures.
- Packaging: The cardboard insert displays typical age-related yellowing and slight storage discoloration as shown in the photos. The plastic casing remains clear and structurally sound.
Shipping & Handling:
- Fast processing and trackable shipping included.
A great addition for collectors of vintage industrial scientific instruments, glassworks history, or physics instructional aids. Please review pictures for full cosmetic condition. Sold as-is. Feel free to reach out with any questions!
