Watch List notes:

MEXICO: Proof Set, 1982/1983, KM-PS1, comprising the 20 centavos 1983; 50 centavos 1983; peso 1983; 5 pesos 1982; 10 pesos 1982; 20 pesos 1982; 50 pesos 1983; and a 1 ounce Libertad 1983, all are choice Proof in the original mint-sealed plastic packaging, inside the original black & gold case, with the description card and the certificate of authenticity (No. 0516), everything in prime condition, including the box and the certificate, set of 8 proof coins, R. The official mintage limit was 1000 pieces, though the mintage reported for the 1 ounce Libertad is 998 pieces. This is a rare proof set, seldom offered for sale. The last two sets at auction fetched $1100 (Heritage Sale 3053, Lot 37716) and $1200 (Heritage Sale 3057, Lot 33715), both in 2017.

Estimate: 700-900 USD