Women back then were not as sturdily built as modern women are---and often have wider feet! 
Gorgeous, elegant, unusual design. Perfect for dancing!
Size is hand-written.  I. Miller, from an Austin store called French Bootery!
Very slight chafing on back of heel and rubbing on velvet at sides.
Heels and soles are sturdy, in good condition.
Straps are leather, reinforced at buckle.