This stamps is in Mint used condition. The cancellation is smudged. It is in same condition it was when I received this stamp. The perforations do not cut into the design and the design is appears to be centered, which means it would from superb, extra fine, or very fine grade. The perforations are also in excellent condition and are all present. It has also not been hinged. The 1918 airmail stamps were issued in 1918. The U. S. Airmail Service was started that year and used two 90-horsepower Curtiss Jenny airplanes. In the 2011 Official Black Book Price Guide to United States Postage Stamps this stamp is listed with a value of $50. In a world known United States Stamp Catalog, this particular stamp is priced at $65. The starting bid price is very generous for this particular stamp. If purchased the stamp will be insured and shipped at Sellers expense and will be sent with extreme care.