A practical treatise on handrailing : showing new and simple methods for finding the pitch of the plank, drawing the moulds, bevelling, jointing-up, and squaring the wreath (1890)
Collings, George · London : Crosby Lockwood and Son · leaf 120
84 STAIRBUILDING. string instead of the section of tlie steps as in the first run. The upper part is, however, set up in a similar way to the lower part, as shown by the dotted lines representing the ends of the steps, &c. … F,g 2. If now the top edges of the strings are drawn parallel to and at their proper distance* from the * This distance may be anything to suit the width of string, but a very general one is 2 inches or 2J inches from the angle made by the top of the tread with the face of the riser.
Hand-railing · Stair building
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.