An identification tag from the Quincy Mining Company. 1 3/8" x 1 1/4" brass.
Each employee placed his numbered tag on the board when he entered the mine and changed it when he came out.
An identification tag from the Quincy Mining Company. 1 3/8" x 1 1/4" brass.
Each employee placed his numbered tag on the board when he entered the mine and changed it when he came out.