This one was a smoky frame standing on piles over an open space where hogs were rooting.
"The Atlantic Monthly, Volume 09, No. 51, January, 1862" by Various
Her back was broken, her frame shaken to pieces, and she hogged excessively.
"The Life of Admiral Viscount Exmouth" by Edward Osler
On the other side is a frame made of hollowed boards set on edge, upon which the hog is scraped and cleaned.
"Home Pork Making" by A. W. Fulton