1915 Helps for roofers and sheet metal workers
Helps for Roofers and Sheet Metal Workers is a trade manual published in 1915 by L.D. Berger for roofers and sheet metal tradesmen, covering roofing, cornices, finials and heating fittings. Its pictures are plain black-and-white line drawings of individual metal components, showing stepped cornice blocks, a sheet metal seam, a register or grille, and a tapered tool, useful to a designer wanting simple technical forms and crisp shading.
