This design of stirrup is known as a bell stirrup ( estribo de campana).
They probably came from Argentina or Uruguay These stirrups are made of a silver coloured metal, probably Alpaca or a similar alloy. The curved arches have separate fixed suspension loops. Below the pierced treads each has a metal skirt or bell.
These are decorated with cast scrolling rococo decoration and a naked woman on each side. There are no maker's marks or stamps.
There are some splits around the edges of the treads
