1880s
From page 33 in Luellen, Mark C. (1992). The Decorative Work of George Herzog: 1851-1920. (Masters Thesis). University of Pennsylvania, Philadelphia, PA:
A design of the Library Ceiling, the Banquet Room ceiling and the Restaurant are the three known renderings for the interiors at The Union League. The Library ceiling, 1881-882, was a geometric design, composed of many Egyptian revival style motifs. The rendering illustrates one-quarter of the square ceiling with the central sectioned-octagon outlined entirely. The design was composed of muted brown, olive, yellow, and blue. The geometric composition is decorated with scrolls and leaves. In a triangle at the corner of the design is a profile of an Egyptian pharaoph.
From Lynch (2009): “From initial observation, the red color seems to indicate that the clay came from the Mississippi River. The brick does not have a brickmaker’s stamp, although it came out of the roof of Pelican Mutual Benevolent Society Tomb. This sample is a regular brick and is struck across the bedding face. It is unclear which direction the brickmaker struck the brick, but it was done with a wire. This brick appears to have been extruded, and the lack of sand in the surface indicates that oil was used as a molding lubricant. Given these characteristics, the brick appears to have been produced by extrusion using the stiff-mud machine and repressed.”