Illustrated catalogue of galvanized iron roofing and shedding, iron structures, &c. : patent portable steel railways, railway plant, iron bridges, &c. (1884)
A. & J. Main & Co. · A. & J. Main & Co. · leaf 5
SECTION No. 5.-Suitable for Spans of 21 to 28 feet … SECTION No. 6.-Suitable for Spans of 28 to 35 feet, with Overhanging Eaves.
Roofing · Sheet roofing · Corrugated roofing · Sheet metal · Structural iron · Ironwork
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.