Just one stirrup (not a pair)
Appears to be a Slone rawhide overshoe stirrup
Inner dimensions:
* 5 1/2" across at widest points 
  (brown leather inset about 4 3/4" across)
* brown leather 3 1/4" wide
* 5 1/2" deep
Outer dimension:
* total height 8 1/2"
* 3 1/2" wide 
Weight:
* 1lb 8.5oz
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