Sorry with the tardy response on your question, but I have not posted for any many weeks. Regarding the firm for which you find facts, Jacob Steinmetz Thorn, born on 1 August 1836, commenced his small business profession for a clerk to the iron merchant business of Martin and Smith https://www.scribblemaps.com/maps/view/Hand-Crafted-Metalworks/Y7NeZjANqr