THE KEYSTONE PORTFOLIO OF MONOGRAMS
This portfolio contains 121 combination designs. These designs were selected from the best of those submitted in a prize competition held by The Keystone, and will be found of value to every one doing engraving.
The designs are conceded to be the best in the market, excelling in art and novelty of combination and skill in execution.
They are printed from steel plates on stiff, durable paper, and contain sample monograms in a variety of combinations.
The portfolio is a bench requirement that no jeweler can afford to be without. It is a necessary supplement to any text-book on letter engraving.
Price, 50 Cents (2s.)
Published by The Keystone,
the organ of the jewelry and optical trades,
19th & Brown Sts., Philadelphia, U.S.A.