Photograph of renovation of Albert Dock, Liverpool, Block D, later Merseyside Maritime Museum, roof to north side showing pop riveting of stainless steel cleats to receive cork roof insulation.

Colour transparency. Renovation of Albert Dock, Liverpool, Block D, later Merseyside Maritime Museum, exterior, roof to north side, just above where later main entrance placed. Pop riveting stainless steel cleats through layer of roofing felt to wrought iron roof plates beneath prior to cork insulation being laid. Workmen, some wearing visors. Note piles of 4" (10cm) thick cork insulation slabs top centre.