Glass mosaic in cement on wooden support, 54 x 24 in. (pkf.org)
They stood out for replacing the traditional wooden supports used for canvases with aluminium rods and strings. (bbc.com)
Tin roofs held up by steel rebar — reinforced concrete columns remain the norm, rather than the more traditional — and more earthquake resistant — combination of wooden supports for brick buildings. (scientificamerican.com)