Watch List notes:

Argentina, Gold Proof 5 Pesos 2000, '150th Anniversary of the Death of San Martin', obv. REPUBLIC OF ARGENTINA over facing bust of San Martin diving dates 1850 and 2000, rev. LA PATRIA AL LIBERATADOR ('Liberator of the Nation') around church facade and denomination, .900 gold, weight 8.06g, limited mint run of 1000 issued, KM# 137, encapsulated in presentation case (lacking certificate), SCARCE.
(Estimate: 300 - 400 GBP)