Crudely Beautiful (and Very Sharp!) Pair of Handmade Shiv Type Knives

I find these quite beautiful, and they're also a pleasure to use--a sort of homemade substitute for exactos, or Opinels. I don't believe prison shivs, but perhaps stealthily made in shop class, who knows? Both with inset steel blades, which remain very sharp. Pretty much indestructible and quite satisfying things.

Silver: 5 5/8" x 11/16". Copper: 4 7/8" x 5/8". Both great condition, very sharp.