Siop Nain is a Grade II Listed Building situated near the center of Ruthin, Denbighshire and dates back to 1490. From 1850 Isaac Clarke used a building at the back, as a print shop, which is most notable for printing of the National Anthem of Wales: Hen Wlad fy Nhadau. In about 1850 he set up his own business at 6 Well St, Ruthin.