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#1509 CD 321 "Bat Ears." Green. 
- Sold Winning Bid: $170.00
- 16 Bid(s) View Bid History
- Lot # 1509
- System ID # 423736
- End Date
- Start Date
#1509 CD 321 REGISTERED TRADE MARK (emerald) Green.
Known as the "Bat Ears."
Four large "braces" are molded on the underside of the large skirt, an unusual characteristic present on some of the insulator styles produced for the C. S. Knowles Company.
The entire large umbrella skirt is under poured, thus the diameter is somewhat reduced. An interesting component that has resulted in the patent date embossing not being present!
Very near mint+ condition.