Vintage Grand River Pottery Seal Pair

vintage shades of brown pottery seals made by Grand River Pottery in Fergus Ontario ~ remnants of stickers on the bottom Mid century style is shown here with sleek and simple lines and rich shades of browns sadly one of the seals has a crack (shown in photos), but I didn't want to separate the pair ~ other seal is in excellent condition and there are no chips on either measure approx 4" long, approx 2" tall