Watch List notes:

GREAT BRITAIN: 7-piece proof set, 1911, KM-PS19, Spink-PS13, certified by NGC missing the maundy threepence: maundy penny PF 64, maundy twopence PF 63, maundy fourpence PF 64, sixpence PF 66, shilling PF 65, florin PF 66, and halfcrown PF 66; nice original toning, mintage of only 2,241 sets, S.

Estimate: 475-575 USD