WDI (Walt Disney Imagineering) Madam Mim

WDI (Walt Disney Imagineering) Madam Mim Villains pin from The Sword in the Stone. It is a limited edition pin. 
The pin was an exclusive release, likely from a D23 Expo or Disney Studio Store Hollywood event. 
It features the character Madam Mim within her cottage setting. 
Madam Mim is the primary antagonist of the 1963 animated film The Sword in the Stone.