Vintage Carborundum & Craftsman Sharpening Stones. Good used vintage condition. Both stones are used and have some wear. Each one comes in the small plastic sheath shown. One is in a black plastic advertising sheath. Black sheath has A Product By Carborundum Trade Mark & Crouthamel Bros. Phone Pa 3-2310 Souderton, Pa. Stone measures approx. 3"L x 7/8"W x 1/4"Thick. The tan sheath has Craftsman Guaranteed Highest Quality Reg Trade Mark 9-6441. Stone measures approx.  3"L x 7/8"W x 1/4" Thick. Come as seen in the pictures.