The mysterious objects are vintage metal shoe heel plates, also called heel taps, heel guards, or shoe protectors. Their curved shape followed the back edge of a shoe or boot heel, while nails or screws passed through the three countersunk holes to hold each plate securely in place.
Once fitted, the metal absorbed the friction created by walking instead of allowing the leather or rubber heel to wear away. When a plate became thin, a cobbler could replace it without rebuilding the entire heel. The Getty Research Institute defines heel plates as small metal pieces attached to shoes specifically to protect them from wear.
These protectors were especially useful when footwear was expensive and expected to last for years. Workers, soldiers, and families commonly had worn shoes repaired rather than replacing them. British manufacturer Blakey’s traces its metal shoe-protector concept to 1880 and continues selling heel and toe plates today.
The pieces in the photograph appear unused, possibly leftover stock from a cobbler or shoe-repair workshop. What looked like forgotten machine components were actually simple devices designed to make everyday footwear last longer.
