August Sperry
Chicago Coin Silver

Note: Case manufacturers modified markings over time. As a result, the image above is simply a representation of one particular marking used by the company. Your case marking may differ based on the production era and other parameters.

Chicago Coin Silver

Known examples with this "Coin" and "Chicago" mark are generally from the early 1870s. Many times, this mark is incorrectly attributed to the Chicago Watch Case Company. However, know production predates the era in which the Chicago Watch Case Company was manufacturing cases.

Blauer & Sperry manufactured silver watch cases out of Chicago from approximately 1866 to 1872. According to Crossman, Sperry ended up going to California to operate the case company for the California Watch Company (Cornell). Several surving examples of the "Coin Chicago" cases have been found paired with Cornell movements. This association supports possible attribution to August Sperry or Blauer & Sperry.

Marking styles and habits are also consistent with cases marked "Chicago" and "B&S" - known products of the Blauer & Sperry partnership.

Database ID:	PWDB-670
Case Grade:	Chicago Coin Silver
Material:	Coin Silver
Note:	Assumed attribution. Mark was likely used by August Sperry or during the partnership of Blauer & Sperry in Chicago. Marking styles differ from Blauer's independent production.
Marking Variants: (Not Intended to be Comprehensive)	Image Provided by Jones & Horan