Theatrum Machinarum Universale; Of Nieuwe Algemeene Bouwkunde: Waar in op een naauwkeurige klaare, en wiskunstige wyze werd voorgestelt en geleerdt het maaken van veelerley soorten van Trappen, ...
A Dutch architectural manual of 1739 by Tileman van der Horst, reworked by the Schenk family, teaching the precise geometric construction of many kinds of stairs for builders and carpenters. The plates are measured line drawings of stair plans, rotating newel stairs, and the wedge-shaped timber treads and stringers cut to fit curved walls, with radiating layout lines beneath each drawing, offering a designer clear models of spiral and fan-shaped stair geometry.
