Deadstock heels, they have never been sold or worn. These 1950s Stanley Philipson are black fabric with clear PVC plastic slingbacks. The shoes are a size 5M with a heel of 3.5in. From the Joseph Larose warehouse. Vintage can run 1/2 size smaller than modern sizes.  Also, while never worn, certain precautions are strongly suggested before you wear your vintage purchase:  re-glue or replace the insole, replace the lifts and replace the soles.  These actions should be easily handled by your local shoe repair.  And the minimal cost involved will improve the longevity of your vintage shoes.