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Keystone Watch Case Co. Ad

Keystone Watch Case Co. Ad image
Parent Issue
Ann Arbor Argus-Democrat, March 6, 1903
Day
6
Month
March
Year
1903
Copyright
Public Domain
OCR Text

STRENGTH

Twenty-five years ago in acquainting jewelers with the strength of the Jas. Boss Stiffened Gold Watch Cases, and enterprising salesman used the method hereshown.

Jas. Boss Stiffened GOLD Watch Case

there is a layer of very hard composition between an inside and outside layer of solid gold reducing the cost of the case, and adding greatly to its strength.

BOSS Cases are guaranteed to wear for 25 years; are recognized as the standard, and sold as such by all jewelers. Write us for a booklet.

The Keystone Watch Case Company, Philadelphia.

By This Mark You Know Them