The builder's jewel, or, The youth's instructor and workman's remembrancer : explaining short and easy rules, made familiar to the meanest capacity, for drawing and working
A pocket-sized builder's handbook by Batty and Thomas Langley, issued in London in 1768 for carpenters, masons and apprentices learning the classical orders. The 116 copperplates are line engravings of arcades, columns, cornices and mouldings, drawn with construction lines, dotted projections and fractional dimensions, and are useful as measured ornament, geometric diagram texture, or engraved architectural lettering.
