The Type Set Collection
Ron Guth: 1820 Half Eagles are made up of the following Bass-Dannreuther varieties:
1820 Square Base 2, Large Letters: BD-1, BD-2, BD-3, BD-4
1820 Curved Base 2, Large Letters: BD-5, BD-7, BD-9
1820 Curved Base 2, Small Letters: BD-6, BD-8
The following Condition Census is modified from that in Heritage's 4/2008 sale, Lot 2435:
David Akers (1975/88): As mentioned on the comments for the 1820 Curved Base 2, Small Letters, the 1820 Curved Base 2, Large Letters is of essentially the same rarity as the Small Letters variety. It is decidedly more rare than the 1813, and also more rare than the 1814/3 and 1818. Most known specimens are high grade.
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