sentences:  The demolition of the Euston Arch  and City of London Coal Exchange demonstrated the lack of regard there was at the time for (then) unfashionable Victorian architecture and the importance of keeping records of their existence.During the 1970s and 1980s the NMR increased its recording of industrial and commercial building records as well as country houses.The expanding breadth of the archive is shown by the acquisition of Rev Denys Rokeby's collection of railway photographs, and H. E. S. Simmons' negatives of water and wind-mills, and John Maltby's collection of photographs of Odeon cinemas.