Henry Cobb's colour photographs of Warsaw in ruins

Reading about the Warsaw Uprising (1944) in preparation for a trip to Poland - remember seeing Henry Cobb's colour photographs of Warsaw in ruins on display there a couple of years ago. It was a real jolt - a shock even - to realise that I thought of the past in black and white (not colour). The past is in colour, of course.  Henry Cobb was one of a party of young American architects who visited Europe in 1947 to view the extent of the devastation and consider reconstruction. The exhibition about this was astonishing. Background here.