Antique Clear Glass CS Co Battery Insulator .
Updated August 21, 2026
This auction ended on August 29, 2026.
See upcoming auctions from Method Estate Management or current antiques & furniture auctions.
| Lot number | 240 |
| Category | Antiques & Furniture |
| Auction | Kostas Volume 13 |
| Date | August 29, 2026 at 12:00 PM EDT |
| Auction house | Method Estate Management |
| Location | Belgrade, Montana |
This antique auction lot features a rare clear glass battery insulator, perfect for industrial telephone and telegraphica collectors. Manufactured by the Hemingray Glass Company, this unique style is clearly embossed with "C. S. CO." along the front skirt base . The thick, heavy clear glass vessel features internal threading and a smooth mushroom-style top cap. Showing light age-appropriate glass swirls, it is ideal for historical communication displays .
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