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#997 728.7 OAKMAN'S PATENT Medium-dark aqua. 
- Sold Winning Bid: $1,900.00
- 28 Bid(s) View Bid History
- Lot # 997
- System ID # 347289
- End Date
- Start Date
#997 728.7 OAKMAN'S PATENT JULY 26 1870. Medium-dark aqua.
A somewhat darker color than is typical for this item. Bright, high quality glass.
Double slotted threadless pinhole, designed to accept a wooden pin/wedge that locked the insulator onto the pin. Nearly all known examples were found in the vicinity of a telegraph route between Philadelphia and New York City. The line was originally constructed by the Magnetic Telegraph Company in the mid 1840's. As time progressed with rebuilds and numerous added wires, various types of insulators were installed including these 728.7 Oakman's, 728.8 Boston Bottle Works and CD 158 Boston Bottle Works.
The embossing is positioned on the inner cavity, just below the pinhole. Some embossing can be read in reverse, looking through the glass from the outside.
Exceptional, sparkling, very near mint+ condition! A beauty in all respects!
From the collection of the late John Ayer.