Patent Blacking
One gallon Alcohol, one ounce Sulphuric Acid, one and
one-half pounds Gum Shellac; let stand 48 hours, then add one-fourth
pound of Ivory Black. Let stand 24 hours, then carefully pour off the
top. This is ready for use and is water-proof. This recipe cost $50; is
for the polish of all leather. It sells in four ounce bottles at $1 per
bottle.