'Old Tay Bridge Disaster: Fallen Girders', around 1900 from the MacKinnon Collection [Shelfmark or accession number: MMK.00368].
A gelatin silver print postcard with a haunting image of the ruined Tay Bridge following its collapse on 28 December 1879.
The postcard measures 8.7cm by 14cm and the photographer is 'Valentine & Sons'. Valentine & Sons was a photography business founded in Dundee by James Valentine in 1851.