20,000 US THREE CENT PLATE BLOCKS - NEATLY PACKED AND NUMBERED - ALL MNH. Type: Three Cent Plate Blocks - Box of 20,000 all neatly packed and numbered by quantity. The item "20,000 US THREE CENT PLATE BLOCKS NEATLY PACKED AND NUMBERED ALL MNH" is in sale since Tuesday, March 6, 2018. This item is in the category "Stamps\United States\Plate Blocks/Multiples".The seller is "imperialmintny" and is located in Brooklyn, New York. This item can be shipped worldwide.