Shop Sign in Shape of a Woman's Shoe
These are two illustrations of wooden shop signs.
The women's shoe appears to be split wood.
Maybe it was a drawing of a real sign rather than a proposal design for a sign to be ordered.
Both men and women's shoes had buttons on the side, and these can be seen in the drawings.
Vintage Sign in Shape of a Man's Shoe
Source: National Gallery of Art
Constitution Ave. NW, Washington, DC 20565
Sited as Public Domain, with
Open Access under the Creative Commons Zero (CC0) license