Rarely seen on the market. 61153 is the registered number at the bottom. Full unblemished gum on the back. Please contact me at: azteccollectables at hotmail. Check out my other online auctions of rare and vintage stamps.My e bay store, Aztec Collectables, has a fine and growing selection of unique covers, stamps and postcards. The item "Mexico Exporta MNH Sheet with Error Missing Eagle Value # C 491 Super Rare" is in sale since Monday, December 22, 2014. This item is in the category "Stamps\Latin America\Mexico". The seller is "aztec-collectables" and is located in Lake Worth, Florida. This item can be shipped worldwide.