JB Martin Paris leather slingbacks

Beautiful black leather slingbacks (vintage?) from JB Martin Paris. Made in France. Cool yellow leather lining. Funky heels. I would say in very good used condition; some small markings in the lining under the toes, and last photo shows a possible imperfection near the heel on the right shoe (hard to see!). Size 37, so we'll go with 6.5. Beautiful shoes!