This product is a single unit Victorian trade card advertising Clark's Mile End Spool Cotton. It was published by Donaldson Brothers in the United States between 1918-1939. The card features an illustration of a bullfinch and is made of paper. It is an original piece and not a licensed reprint. The card measures 5 1/4 x 3 inches and is a type of topographical postcard. It is a collectible item and would be suitable for any occasion.