Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 135,384 pages of information and 216,989 images on early companies, their products and the people who designed and built them.
James P. Coultas, Agricultural engineer of Grantham.
1894 June. Royal Agricultural Society's Show. Plough with reversible share 
1910 James P. Coultas died; his son, James Riley Coultas, presumably took over the business.