The National Foundry of Whitman, Massachusetts, was a contemporary of Hubley Manufacturing Company of Lancaster, Pa.
They started production in the mid-1880's, just before Hubley in 1894.
This Doorstop is Brass Electroplated over the Cast Iron. Cost in 1920's was $3,00.
National sold their doorstop unpainted for 75 cents or
electroplated with brass, copper, or nickel for $3.00
per National's 1920's Catalog.
They also sold paint kits or their doorstops painted.