This is a very rare coin silver calling card case made by the Northwestern Silverware Manufacturing Co. It is rare because the company was only in business from 1865 to 1871. The building burnt down in the great Chicago fire and was not rebuilt and the business did not re-open elsewhere. There have been a few spoons that have come on the market, all marked as coin silver. An interesting note is Rainwater has this firm listed as producing silverplate, so this may be a mistake. Not much is known about this company.
The card case is finely engraved with the original owners name on the front, Mrs. B. M. Ford. It is stamped with the makers mark but no silver content mark. I DO guaranteed this card case to be at least 900/1000 silver. It is superb! The original fitted leather clad case is in good condition with some wear to the leather, please see photos. The card case itself is near mint condition and modern size business cards fit just fine.
I have to wonder how Mrs Ford fared in the fire. Did she survive? I have no information from the heirs since this piece came from a sale of unclamined safe deposit boxes. Kind of sad really, but gives the case some added drama for sure.