Showing 1 - 2 of 2 , query time: 0.01s
Cover Image
Format:
Image
The main shaft house for the New Jersey Zinc Co. is the tall building at far right. The stacked lumber is for mine stoping. This view is facing north.
Cover Image
Format:
Image
Signal pulleys to let the hoistman, who operated the cage, know when to raise or lower the cage.