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 6
SECTION No. 2—Suitable for Spans of 35 to 50 feet, shewing Curved Ventilator on Apex, which can be applied to any of the Sections. … SECTION No. 3.—Suitable for Spans of 50 to 70 feet.
Roofing · Sheet roofing · Corrugated roofing · Sheet metal · Structural iron · Ironwork
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