Lithograph means "stone print". Invented in 1796 by Alois Senfelder, it works on the simple principle that oil and water don't mix. An image is drawn with oil, fat or wax onto the surface of a smooth, level lithographic limestone plate. The stone is treated with a mixture of acid and gum arabic, etching the portions of the stone that were not protected by the grease based image. When the stone was moistened, those etched areas retained water; an oil based ink could then be applied and would be repelled by the water, sticking only to the original drawing. The ink would be transferred to a blank paper sheet, producing a printed page.

Chromolithograph is a method for making multi-color prints and includes all lithographs. Lithographers developed a way to pint on flat surfaces with the use of chemicals instead of relief or intaligo printing. Depending on the number of colors present, a chromolithograph can take months to produce. The goal was to gradually build and correct a lithograph using dozens of layers to accomplish the complete picture. As a process, this was time consuming, cumbersome and contingent upon the skill of the lithographer.

Offering a Chromolithograph from Warren's "Enemies of Poultry" published by the Pennsylvania Department of Agriculture.  This picture demonstrates a Pigeon Hawk perched on a tree branch. It is a genuine antique print dated 1897. It measures 13" x 16" and is enhanced in a lovely wood frame.

This Chromolithograph is conservation mounted - acid free museum quality mat and archival backing.

# 5616-722.7


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