File:William Rowan Hamilton Plaque - geograph.org.uk - 347941.jpg

photographer described at URL: https://www.geograph.org.uk/photo/347941 operator: Geograph Britain and Ireland geograph.org.uk image ID: 347941 heading: 0 degree

Rowan Hamilton.jpg Quaternion Plaque on Broom Bridge.jpg William Rowan Hamilton Plaque - geograph.org.uk - 347941.jpg I, the copyright holder of this

See also File:Broom bridge plaque.jpg. "The least visited tourist attraction in Dublin" English

2006-03-05 21:14 Wisher 1536×1024× (207614 bytes) Author - wisher Photo of the plaque on Brougham Bridge in Central Dublin. Photo taken mid May, 2005. English

the same or compatible license as the original. https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4