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Mack Signs is a traditional signwriting and mural painting business based in north Co. Dublin, led by Cormac Dillon. They work throughout the country painting traditional shopfronts, gilding with genuine gold leaf on glass and painting large scale lettering based murals.


Their style is varied from using clean modern design principles to decorative letter styles embellishing them with shading and shadows and colours. Cormac has a strong passion for the artform and will always go above and beyond to create outstanding work.

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This mural is a salute to the Great Northern Railway works - between 1887 and 1939 47 engines were built right here in Dundalk and employed over 1200 people.

This mural depicts the actual blueprint used in the construction of steam engine “GNR Slieve Donard 172”.


In 1938/1939 a series of steam engines were built, all called after mountains:

Slieve Donard

Slieve Gullion (still running)



And Carantoohill

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