The Antique Brass Railway “American Express Co. Markleville Ind.” Wax Sealer Stamp is a vintage collectible made of brass and wood. This unique stamp features a wax sealer design and bears the mark of American Express Company in Markleville, Indiana. A rare and valuable addition to any stamp collection, this piece exudes historical charm and character. Perfect for collectors of desktop items and vintage memorabilia, this antique seal stamp offers a glimpse into the rich history of American Express.