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Pole Top Discoveries' Event #2403 Closed February 26.
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#3625 701 "Magnetic Egg." Dark teal. 
- Sold Winning Bid: $3,500.00
- 22 Bid(s) View Bid History
- Lot # 3625
- System ID # 779181
- End Date
- Start Date
#3625 701 Unmarked. Dark teal.
Known as the "Magnetic Egg."
A dark color, but still passes light through the dome and pinhole areas of the insulator with window lighting. A lighter, more attractive density than most examples! It also has less green coloration than most examples, with noticeable teal toning. A scarce color variant.
The egg style insulator was introduced by William Swain, president of the Magnetic Telegraph Company circa 1850-1851. Limited numbers have been found in Pennsylvania and New Jersey along the route of the Magnetic Telegraph Company line which traversed from Philadelphia to New York City. Additionally, they were also used by other companies in areas ranging from New York State, southward to Maryland, Virginia, and most states in the Southeastern US.
The third and fourth photos depict a pole along a street, circa 1860's, in Philadelphia. The pole is anchored to a building, sporting six egg style threadless insulators! The top left example appears to be a 701. The other two examples at upper portion of the pole appear larger, perhaps 701.5 units. There are three additional eggs positioned on the lower half of the pole, facing toward the camera. A fabulous image!
This example remains in excellent condition, especially for an egg! Very near mint.