Vintage (circa 1950's) Sears & Roebuck J.C. Higgins metal roller skates.  These adjust for length and width of feet.  The leather strap on one is whole, the other is broken off.  Both are in delicate shape as they are old and leather.  Wheels are metal, all bearings are in working order.  These are an amazing piece of history and can still be used or just displayed and saved.  I personally wore these throughout the 60's and early 70's, as passed down by my brother.  Downsizing and simply can't keep everything.