All Aboard Railroad Collectible Stamp Sheet of 20  33 Cent Stamps Scott 3337a New sheet of (20) stamps (catalog #s 3333-7) no longer sold by USPS. Plate #/position varies. Features 5 watercolor paintings of trains, with text on the back describing the train's unique features Perfect gift for fans of Trains, Railroads, Travel Great for raffles, conference giveaways, fan clubs, fundraisers, souvenirs. Collectors item. High quality item professionally packaged in a white Stay Flat envelope.