The lid features a stunning reverse-carved Essex crystal depicting a group of Mallard ducks taking flight from their rush nests as a fox leaps at them. This is certainly one of the most detailed Essex crystals we've seen, with amazing detail. The paint is applied thinly so the water has a very realistic, limpid appearance against the more solid textures of fur, feathers and rushes. The crystal is backed with mother-of-pearl.

The box's interior is lined with mahogany panels. The bottom of the box is made of gold-plated metal rather than solid 14K, for added strength. The sides, lid and feet, however, are entirely worked in 14K gold. The bottom edge is hallmarked "Marcus & Co. New York 14KT". Marcus & Co. was one of the most important American jewelry houses from the late 19th through the mid-20th centuries. It was in direct competition for both designers and clients with other makers such as Tiffany & Co. John D. Rockefeller was one of Marcus' largest clients.