That "kitten" looks to be a real Treat, thank you for sharing Jim!
Is the kitten a production engine? Or something built by a talented machinist?...I did a quick Google search and did not get any hits for any engines that look like this! -Ben
Ben the plans for the 'Kitten' is in Tubal Cain's steam engine plans book.
The 'Kitten' and the 'Polly' I think are the most popular made off his plans.
Thanks Jim. I was able to find steam books by Tubal Cain, they are highly reviewed and Also I was surprised to learn there was a Model Engineering class where students build a Polly engine....also found "Material kits" for Polly on ebay uk in about 6 versions! The different versions are things like with/without Cain book and if you want to build Meths burner or use Solid fuel tray or gel fuel.
I have not heard back from Phil yet, I believe I will source a couple of Cain's books. None of the machine work scares me, I am hopeful the books will have advice on how to make a neat job of Soldering.
Video: I found this video of a Polly that is quite attractive to my eyes, the builder comments he changed the Polly plan quite a bit and it will require quite a bit of polish to keep his all Copper boiler looking this good!