A century-old St Patrick's Day postcard finds its way from Antarctica to Cork

The postcard was written in 1910 to Patrick Keohane, the famed Antarctic explorer, by his sister Hannah

Hannah Keohane's 1910 postcard to her explorer brother Patrick Keohane was found in Antarctica in 1963.

An Irish Examiner reader has shared what he believes might be one of the “most travelled St Patrick’s Day postcards ever”.

The century-old card, first posted in March 1910, made its way from Ireland to Antarctica and back, surviving an extraordinary journey in even more extraordinary times.