The Shahn piece is a little outside the purview of Ink Art Fair in that it isn't a print (although it is a work on paper). The piece is gouache and Pencil on paper. It is a tad ironic a piece in support of the working class is, 80 plus years later, selling for $7500 but the art world is full of such ironies.
The Bill piece is a white line woodcut. It is also a charming little piece of history. You can imagine it being prized by the people who originally bought it and remembered by their children, their grandchildren as something that hung in the house, something that comforted. It is lovely and it is fantastic it is considered valuable.