Mexican 25 pesos 1968 Olympic coin value

The image of this coin is simply an example of Mexico 25 pesos 1968 Olympic type coinage.
Cost approximate and valid for common coin only (without rare varieties).
I do not buy or sell coins - this is just a catalog.

Mexican coin 25 pesos 1968 Juegos Olímpicos

Currency - Peso=100 centavos
Type - commemorative coin

Composition - Silver 0.720
Diameter - 38.0 mm
Weight - 22.50 grams

Edge: Inscription "INDEPENDENCIA Y LIBERTAD"

Years of mintage:
1968

Reverse:
Olympic rings below left native dancing
Legend:
JUEGOS DE LA XIX OLIMPIADA MEXICO 1968

Obverse:
National emblem and garland
Legend:
25 PESOS / LEY 0.720 / ESTADOS UNIDOS MEXICANOS

Krause catalog number - KM#479

Value in condition "UNC" - 15-20 USD