One blue Early American Patterned (or Pressed) Glass (EAPG) shoe, in very good condition. No patent nor other marks. My mother (born early in the Depression) recalls that her mother (my grandmother) received a pair of these from my mother’s great aunt, and that they were quite old at the time—definitely no newer than the 1900s (1900-1909) and probably older.
One of the pair sold in 2018 for more than my asking price. Selling the remaining shoe for $10.