1983 Mexico 20 centavos Cultura Almeca circulating commemorative coin. Obverse: National arms - eagle left, with snake and cactus - ESTADOS UNIDOS MEXICANOS Reverse: Olmeca giant head statue 3/4 right with value below, date right - CULTURAL OLMECA The Olmecs were an ancient pre-Columbian people of Mesoamerica who flourished from 2500 BC to 500 BC on the Gulf Coast, in the Mexico Basin and along the Pacific coast Edge: Reeded Mint mark Mo Mexican Mint, Mexico, Mexico Composition: Brass Weight: 3 g Diameter: 20 mm Thickness: 1.1 mm Round, Milled Demonetzed: 15 November 1995 N# 1040 KM# 491 Shipping is $1.00 to anywhere in the USA. International shipping rates apply. Shipping always combined on multiple purchases.