Currently, the largest known number of the 2¢ vertical coil on cover, parcel piece, or tag is: 3. A cover with 10 was sold on eBay on 7/24/2023 but is not being listed because it is a very late use (4/3/1983) paying the 20¢ first-class rate.

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Description: Three 2¢ vertical coils paying the 6¢ domestic air mail rate on a cover sent from Honolulu, Hawaii to San Francisco, California.

Owner/Source: Anonymous.

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