An edition of The universal stair builder (1851)

The universal stair builder

being a new treatise on the construction of stair-cases and hand-rails ... with a new method of sawing the twist part of any hand-rail square from the face of the plank, and to a parallel width. Also, a new method of forming the easings of the rail by a gauge; preceded by some necessary problems in practical geometry, with the sections of prismatic solids ...

By R. A. Cupper