This is a rare opportunity to own a piece of history. The #505 Washington Error Block of 9 stamps, with the denomination of 5 cents, is a must-have for any serious collector of United States stamps. These stamps were manufactured in the United States and have the original gum quality, making them a valuable addition to any collection. The stamps are uncertified, adding to their uniqueness and character. This plate block/multiple is a fantastic find for anyone interested in United States stamps and is sure to impress. Don't miss out on the chance to own this piece of history.