I have borrowed the early 2 speed rear brake part in the photos to get a copy made for my 1920 2 Speeder. Before I proceed to get this part manufactured has anyone got one for sale?

When I removed this from the 100+ year old Scott I noticed that it had hardly worn off the paint so I would think that there has been very little wear over this time. If anyone has accurate measurements of a good part that would be helpful in trying to access wear over the years.

Many thanks in advance.

Steve