Watch List notes:

Argentina and Chile, Peace brokered by the British, 1902, celebrated with a gymnastic tournament organised by the League against Alcohol, silver medal, port-side view of ARA San Martín, rev. crowned British arms with those of Chile and Argentina either side, 27.5mm., nearly extremely fine, very rare
ARA San Martín was a Giuseppe Garibaldi class armoured cruiser purchased in 1897 and scrapped in 1947.

Estimate: 50 - 80 GBP