I worked for Kaye’s from 1984 and we’d stopped making them several years before that. All the drawings and records were burned by some idiot before I could save any of the information.
The LMS on the handle presumably refers to a specific loco shed. It’s a standard 1/2 pint model, made in hundreds if not thousands over the years.
We used to make the tiny Meccano oil cans and I knew the chap who made them. He was delighted when I took mine in to work to show him as it brought back memories for him; I think he enjoyed making those better than the full sized ones. The MD had a big 1 pint one, gold plated, on his desk!