This single stirrup is made of silver (not sterling) and comes from Latin America, most probably Peru.
It would have been used by a lady riding sidesaddle, so it would never have been part of a pair.
The arch of the stirrup has a cast shell, flower and grapevine on each side and pivots around the base of the stirrup.
The base itself is shaped, there is a repaired crack near the pivot point on one side.
The toe was functional as well as decorative, it covered the front of the foot, preventing it from slipping through the iron and getting trapped.
It is decorated with an overflowing vase of flowers and foliage.
There are no stamps or maker's marks
Dimensions : External Width 4" (10cm), height of arch 4" (10cm), length of tread 8" (20cm)
Weight : 569g (1 lb 4oz )
Ref : stirrup336