Portugal 20 Escudos (1953)
Coin Ring

Shield above globe, value at left, all within circle.

Lettering:

REPUBLICA PORTUGUESA
20 Esc.
1953

Year: 1953
Composition: Silver (.800)

The first half of the photos are before the liver of sulfur treatment. The latter half is of the treatment. Liver of sulfur is what adds depth to the pattern and a darker patina to the silver.