Proof Liberty Seated Half Dimes (Buy on eBay) have been struck for each year of the series, although it was not until after 1857 that the proofs were struck in higher quantities and sold to collectors.
The first year of issue for the series is the most common for the earlier proof coins with an estimated 20 pieces struck in 1837. Some issues from the 1840’s and early 1850’s had as few as five pieces struck and only a few survivors across all grades. The proof coins from 1858 onwards carry mintages from the low hundreds to one thousand pieces and are more readily available.
A complete set of proof Liberty Seated Half Dimes is possible to for the later dates with only some difficulty, but the early dates have proven to be so rare that complete sets are seldom formed or even come close to completion by the time they are sold.
Proof Liberty Seated Half Dime Mintages