Watch List notes:

Buenos Aires, Argentina, copper 5 decimos, 1827, coin axis, struck 10% off-center over a 1 decimo of 1822-3, NGC Mint Error MS 64 RB. Janson-9; KM-3. Bright luster and original color, only a small part of the under-coin details visible at edge.

Estimate: $200 - $300