By the Curtiss aeroplane and motor company. 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 "Mint USA Real Picture Postcard RPPC Flying Boat The Curtiss NC" is in sale since Sunday, October 28, 2018. This item is in the category "Collectibles\Postcards\Transportation\Aircraft". The seller is "aztec-collectables" and is located in Lake Worth, Florida. This item can be shipped worldwide.