Eldon Office Products Stackable Letter Tray Set of 2 Black Vintage 1969 USA Lot Eldon Office Products stackable letter trays in a classic black finish. These vintage 1969-patented organizers feature a side-loading design with distinctive vertical slat detailing and integrated handle cutouts. Made in the USA from durable plastic, they are ideal for maintaining a tidy workspace with a mid-century modern or industrial aesthetic. The trays stack securely to maximize vertical desk space. Please review all photos carefully. Thanks for shopping Stacks & Co.! Please review all photos carefully, as they are part of the description. Questions are always welcome. #MidCenturyModern #Industrial