terry joyce on Geograph One O' Clock Gun. Fired every day, except Sundays at one o' clock. The first gun was fired in 1861 to provide an audible time signal for ships in the Port of Leith. , Edinburgh Part of the Edinburgh Castle series Colour: This plaque is purple, white and green glass claret orange purple clear bronze grey stone red slate wood blue black brass multicoloured pink brushed metal green maroon film cell green and red Belgian Blue Stone red and black yellow terracotta marble brown silver white gold Wikimedia: Flickr: Google Streetview OpenStreetMap
