Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,509 pages of information and 233,943 images on early companies, their products and the people who designed and built them.
of City Iron Works, Lincoln
formerly Penney and Co and Porter and Co, general engineers, makers of gas holders and tanks, seed-dressing machinery, acetylene welding and lighting plants, disintegrators, boilers, oil engines, etc/
By 1919 the 2 companies had amalgamated
1921 Offering a range of vertical semi-diesel engines from 10 to 500 hp 
1937 Mechanical and electrical engineers