Black square toe mules with low heel

Vintage black backless square toe mules with low heel by Etienne Aigner brand. Good vintage condition. Soles and heels are great condition—the body of the shoe is in good condition with one slightly noticeable scuff shown in last three photos. Labeled as a 7.5 but fits narrow and more like a 7. I am a 7.5/8 usually and have narrow feet, and these are too snug for me.