![Bessemer mild steel angle iron, bent and folded cold](https://coimages.sciencemuseumgroup.org.uk/402/587/large_smg00047150.jpg)
Bessemer mild steel angle iron, bent and folded cold
Specimen, Bessemer mild steel angle iron, bent and folded cold
Four Bessemer mild steel angle irons, bent and folded cold in various ways, at the Crewe Works, communicated by F.W. Webb
Specimen, Bessemer mild steel angle iron, bent and folded cold
Specimen, Bessemer mild steel angle iron, bent and folded cold
Specimen, Bessemer mild steel angle iron, bent and folded cold
Specimen, Bessemer mild steel angle iron, bent and folded cold