This design of stirrup is known as a bell ( estribo de campaña) or crown stirrup.
These stirrups are made of brass or bronze.
The curved arches have separate fixed suspension loops - the top bars are worn, these were working stirrups, not tourist souvenirs. Below the pierced treads each has a metal skirt or bell. These are decorated with cast basketweave decoration and a horse's head on each side.
There are no maker's marks or stamps.
Dimensions : Width 5½" (13.8cm), height 7½" (19cm), depth 2" (5cm)
Weight : 2lb ¾oz (926g)
Ref : stirrup221