Two woodcut diagrams showing stepped, cross‑shaped geometric forms composed of adjoining rectangular blocks. Each figure presents a symmetrical plan with projecting arms, one broader and more rounded in outline, the other more compact and angular. The shading emphasises their structural profiles, typical of mid‑19th‑century architectural reference illustrations. From one of a collection of woodcuts published in the 4th (enlarged) edition of A Glossary of Terms Used In Grecian, Roman, Italian and Gothic Architecture, which was published in 1845. In some cases the pages had some moderate foxing,

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