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The GFRC Open Set Registry Community Project

Barber Half Dollar - Date/Mintmark with 1892-O Micro o Variety

This set encompasses the date and mintmark set, but also includes the 1892-O Micro o, the most famous variety in Barber coinage. Known since 1893, this variety is listed in the Red Book, and is often added to advanced collections of Barber halves, even when other varieties are not included. There are probably between 45 and 55 known in all grades, mostly in Fair-Good, and AU-Unc, with very few pieces known in middle grades.



Click Collection Name to view its composition. The Blank Collection is an empty version.

Collection Rating Complete Weighted Grade caccoin.com Last Updated
The Oregon Beaver Collection 20.4 99% 21.0 1% July 16, 2017
The John Okerson Collection 13.3 99% 13.7 0% July 16, 2017
The Terry Hess Collection 7.2 99% 7.4 0% September 4, 2017
The Blank Collection
Collection Rating Complete Weighted Grade caccoin.com Last Updated
The Oregon Beaver Collection 20.4 99% 21.0 1% July 16, 2017
The John Okerson Collection 13.3 99% 13.7 0% July 16, 2017
The Terry Hess Collection 7.2 99% 7.4 0% September 4, 2017
The Blank Collection

Rating: The weighted average of all coin grades (i.e. aggregated sum of each coin grade + CAC premium multiplied by its rarity factor divided by the sum of all rarity factors). Missing coins are included and assigned a grade of 0. This metric is the basis for order rank.

Complete: The number of coin entries divided by the total number of coins in the Set.

Weighted Grade: The weighted average of all coin grades (see calculation above), but excluding any missing coins.

%: The ratio of coins certified by CAC (either green or gold sticker). Calculated as the number of CAC coins divided by the total number of entered coins.

Rarity Factor: