This postcard was published by Aerogem and is of a Continental 720-024B N57204 s/n 18419. We do accept electronic payments through Paypal only, Money Orders or personal checks. Buyer pays $1.50 First Class Shipping and Handling. Quoted S/H is for Domestic US only, we will requote Foreign S/H. Money Orders ensure next business day shipment. (MA residents add 5% sales tax.) Only one shipping price is charged for multiple winning bids. All cards are shipped in document mailers or supported with sturdy cardboard.