Radiation and conductibility: industrial insulation. We surround the pipes with siliceous earth bricks. Anonymous illustration from 1925. Private collection.(Radiation and Conductibility: Industrial Insulation. We Surround the Pipes with Siliceous Earth Bricks. Anonymous illustration from 1925. Private Collection)Anonymous Anonymous |
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Udatert · Engraving
· Bilde ID: 926060
Private Collection / Bridgeman Images |
0 Vurderinger |