Antique Ornate Argentina Spurs with Coins

My mother gave these to me and she said a friend of hers gave them to her a while back. I just thought they were really cool.

Not sure what type of metal they are. Has 2 coins on each spur. The coins are Republica Argentina 1891, Libertad Dos Centavos on one spur, and Republica Argentina 1884, Libertad Dos Centavos on the other. They seem fairly old with a light patina. Pretty ornate flower design on the outside. Inside has an orante design as well. Seem to be women's spurs. Cant seem to find any marks other than the coins. Any information/history on these would be greatly appreciated. They sure are cool!