I restore and repair antiques for a living now, and I picked this piece of equipment up at a yard sale, I’m trying to do research on it, I get it that it is London warranted, I have makers marks on it that I found, I want to get this working, not that I’m going to use it but I want to Restore it without making it look new like I do the furniture, any help I can get as far as the age and to makers Mark‘s would be great, it does not work because the trigger mechanism does not have it looks like a piece of Springsteel but it needs