US Stamps # C13 Superb Jumbo Used. The item “US Stamps # C13 Superb Jumbo Used” is in sale since Friday, May 11, 2018. This item is in the category “Stamps\United States\Back of Book\Air Mail”. The seller is “anthonysnj-stampsandcoins” and is located in Englewood Cliffs, New Jersey. This item can be shipped worldwide.