EIRE in large letters

The strangest thing Major Burke had seen that day, flying recce along the coast, had been the giant word EIRE in the field. Flying in from the sea, over a scarf of beach, sharp cliffs, they'd passed over a startling deep green field with a word in it, white as chalk. 'EIRE'.
"What's that?" Major Burke shouted over the hurricane of metal frame and fabric skin surrounding him and the unmuffled gnarl of a 950-hp rotary engine. This was his third ride ever in an airplane, he noted to some imaginary diary writer. Until now, he hadn't realized pilots couldn't much use their sense of hearing. Another plane could sneak right up on you; you'd never know it.
The RAF pilot banked the Lysander lower above the dark, monotonous waters of Carlingford Lough...

Banba's Crown

Banba's Crown is the most northerly point in Ireland. Lloyd's Signal Tower is located here and was built in 1805.This was used as the radio station and to monitor shipping. In fact the California Goldrush, the Asassination of President Lincoln and other historical records were 1st introduced to Europe through this station. You can also see the word EIRE laid out in large white stones to enable aircraft to identify where they were flying over to prevent them from bombing Ireland , which was neutral during WWII. seaviewtavern.biz/things_to_do_in_malin_head