LANGLEY, Batty (1696-1751). The Builder's Chest-Book or a Complete Key to the Five Orders of Columns in Architecture, London: J. Wilcox, 1727. 8° (174 x 100mm). 2 folding plates cut into 7, woodcut headpieces and tailpieces (some light marginal spotting). Contemporary sheep, single gilt filet (rebacked with original spine laid down, corners repaired). Provenance: shelf-mark in ink on front free endpaper. FIRST EDITION, presented in the form of a Masonic catechism, with a 'dialogue' on architecture being a series of questions and answers between a pupil and his master. Harris 413; RIBA 1730.