Watch List notes:

George III (1760-1820), Shilling, 1819 over 3 (ESC 2153 [1235A]; S -), pleasing cabinet tone, the bizarre overdate crisp and clear, much as struck, rare, in NGC holder, graded MS64.
provenance
'The Archer collection'
ii) Spink auction 16, 9-10 July 1981, lot 666 [part] - £100
Estimate: £150 - £200