Large steam derrick handling big pieces of granite on wharf at Clark Island, St. George, Maine.

Large steam derrick handling big pieces of granite on wharf at Clark Island, St. George, Maine.

Large steam derrick handling big pieces of granite on wharf at Clark Island, St. George, Maine. Compare to LB2013.21.1860 - appears to be same derrick, with house added around the boiler and winch.