Roll-turning for sections in steel and iron : working drawings for rails, sleepers, girders, bulbs, ties, angles, &c. : also blooming and cogging, for plates and billets (1894)
Spencer, Adam · London : E. & F.N Spon ; New York : Spon & Chamberlain · leaf 94
7%x3 BULB ANGLES. Plate XXXIV. … Finishing
Rolling (Metal-work) -- Drawings · Steel · Iron
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.