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#019 136.7 PAT OCT 15 1872. Fizzy ice green. 
- Sold Winning Bid: $1,500.00
- 5 Bid(s) View Bid History
- Lot # 019
- System ID # 177737
- End Date
- Start Date
#019 136.7 PAT OCT 15 1872. Fizzy ice green. Three segmented threads.
A seldom seen item, and especially desirable due to the attractive and rarely encountered coloration. The glass has thousands of microscopic bubbles, which glow when bottom lighted.
Produced using Samuel Oakman's patented process for forming threads in insulators. Both three segmented and four segmented variants were produced in differing insulator styles, with far fewer of the three segment examples being found.
Partrick & Carter, an early telegraph supply company, offered this type of insulator in their 1870's catalogue of supplies. A portion of a page from their Catalogue appears in the 2nd image provided with this auction listing. Note the claims made in the listing, including the ability of the insulator to cut its own thread on a threadless pin, and that the insulators were made of "light colored glass" to discourage spiders and insects. Based on that information, it was no accident this type insulator exists in such a pastel shade.
Anyone who collects rarities or specializes in Oakman/Boston Bottle Works items should pay special attention to this insulator.
Flat base flake outlined with yellow dots in 2nd image. Remainder of insulator in excellent condition.