Jas. Boss Stiffened Gold Watch Cases

(Image of hand holding a watch case with the letters "JAS.BOSS CASE" in the interior. Caption reads "WON'T BEND OR DENT")

WATCH PROTECTION

The Jas. Boss Stiffened Gold Watch Cases are an improvement on solid gold cases. They are stronger and won't bend or dent. Made of two layers of gold, with a layer of stiffening metal between, welded together into one solid sheet. The outside layer contains more gold than can be worn off a case in 25 years, the time for which a Jas. Boss Case is guaranteed.

Jas. Boss Stiffened Gold Watch Cases

are recognized as the standard by all jewelers. They are identical with solid gold cases in appearance and size, but much lower in price. Don't accept any case said to be "just as good" as the Boss. Look for the Keystone trade-mark. Send for booklet.

The Keystone Watch Case Company, Philadephia.

(Image of hand holding watch case with the letters "SOLID GOLD CASE" in the interior. Captain reads "WILL BEND AND DENT.")