Here's a friend helping to move a 4-ton seacoast cannon from the garden to the street for pickup by the winning bidder. The truck just spun wheels on the lawn so we put on the brake and used it as an anchor to slide the cannon along 1/2-inch at a time with a chain hoist. The cannon is about 10 feet long.
Thanks for showing that clip spring, amazing how the truck can move it so easily. How old is the cannon?
Here’s the auction description and a pic of how they were moved back during the era of the War of Northern Aggression, 1861-65. Auction piece dates from 1850’s. The photo below shows a cannon weighing about twice what mine weighed, being moved by a “sling cart.” Cannon barrel in the pic was made by Tredegar Foundry in Richmond, for the Confederacy, and is shown with two Union officers after its capture near Richmond. http://jamesdjulia.com/item/2080-373/