Vintage Yves Saint Laurent sandals

Vintage. Preowned. Yves Saint Laurent leather sling back ankle sandals. Black with multicolor accent marks on straps. Gold toned side buckle closures. Heels are 3 1/2 inches. Size: 8 The sandals are in good condition for their age. However, there appears to be what looks like permanent marker on the sole of the sandals, and also looks like someone attempted to remove the marks with a substance and left “fluid stain”