PLAN No. 438. KEEPING PIANO KEYS WHITE
Reading edition
This is a woman’s discovery, and a valuable one, too, for it not only kept the keys of the piano white, but made her a good profit. She introduced it by asking her friends to try it on their piano. She made it of the following ingredients, the proportions given being enough to make 96 4-ounce bottles of the preparation, and as a cleaner and whitener of piano keys it has no equal. The entire cost of making it, bottle, label and all, is only about 5 cents per bottle, and it sells rapidly at 50 cents for a 4-ounce bottle. This is the formula:
Grain alcohol, 1 gallon; water, 2 gallons. Mix. She learned by experience that this preparation prevents discoloration of ivory piano keys, and restores faded, yellow keys to their natural whiteness and gloss. With each bottle, properly labeled, she gave the following directions: Dampen a piece of chamois with the preparation, apply to the keys, and after fifteen minutes rub over with a dry piece of chamois. Repeat the treatment weekly, always using the same pieces of chamois, and you will always have white, glossy, beautiful piano keys.
She first sold this through agents, then to music houses, and later made it a mail-order proposition by advertising, and sold so much of it that she finally devoted her entire time to making and selling it.