These figures have been around for years and are still in demand. They are pretty scale agnostic, because they represent equipment that was often hand crafted by artisans and could be of differing sizes. They would work with any figues from 20mm through 32mm.
The molds are old and the pieces are fiddly with some small gears that need to be attached. We are proposing a Kickstarter to support us in cleaning up the equipment, making them easier to model and then pressing new molds. If these are pieces you can use in your games we would appreciate your support.
These pieces were cold molded using actual wood and have the ingrain feel of the wood that the pieces were commonly made from. They are intricate pieces that have won awards in the industry.
See the preview here.
https://www.kickstarter.com/projects/941525798/602402922?ref=6abz3k&token=e3c38026