Sand Casting Flask (Wooden Mold Box) for an Aluminum Caduceus A483

An original wooden sand casting “flask” for a caduceus, that classic design of two serpents entwined on a staff. The caduceus was the insignia of the healing arts since the time of Aesculapius, and is often used as signage for a doctor’s office or hospital. This wooden mold box came from an aluminum foundry. With its signs of wear and use it has become a beautiful object in its own right.

79 1/2″ long, 16′ across, 2″ thick.

Sand casting, also known as sand molded casting, is a metal casting  process characterized by using sand as the mold material. The term “sand casting” can also refer to an object produced via the sand casting process. Sand castings are produced in specialized factories  called foundries. Over 70% of all metal castings are produced via a sand casting process.

Sand casting is relatively cheap and sufficiently refractory even for steel foundry use. In addition to the sand, a suitable bonding agent (usually clay) is mixed or occurs with the sand. The mixture is moistened, typically with water, but sometimes with other substances, to develop strength and plasticity of the clay and to make the aggregate suitable for molding. The sand is typically contained in a system of frames or mold boxes known as a flask. The mold cavities and gate system  are created by compacting the sand around models, or patterns, or carved directly into the sand.

This object was acquired from a collection assembled over the years from the inventories of the following companies: Barker Foundry Supply Company, American Bronze Crafts, Triple A Metalcraft Corporation, Casting Research & Mafg. Inc., Hartman Pattern Shop, Grant & Company, Industrial Foundry, National Brass Works, Inc., Fresno Iron Works, Progressive Pattern and Foundry, Pacific Cast products, Independent Foundry Supply Co. Triangle Brass Mfg., Los Angeles Aluminum Casting Company,  and Loar Foundry & Mfg. Co..