Pottery production in Scotland was minimal until around the middle of the eighteenth century. By the nineteenth century it was one of Scotland's most successful exports. The main centers of production were Glasgow and East Lothian. These were thriving centers because of the clay resources and export potential there. Within south-west Scotland, there were famous potteries at Cumnock, Drongan, Sanquhar and Kilmarnock whose names included J. & M. Craig, J. & R. Howie and Southhook Potteries. Cumnock Pottery was probably the best loved for it's mottoes, and therefore became the most popular export of all.