Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,100 pages of information and 233,633 images on early companies, their products and the people who designed and built them.
P. and W. MacLellan of 129, Trongate, Glasgow.
This should be P. and W. MacLellan
Machine makers and millwrights
Bridge and windmill builders.