Philip, that is a sweet runner. I have same one but have only run it on air. Yours is a keeper for sure.
Rog
Thanks Rog, it is a beautiful runner. You ought to get some steam through yours, the smell of steam, oil and hot iron is fantastic!. If you are worried about corrosion, I always suck a bit of steam oil in the cylinder whilst it is still hot to displace any remaining water through the drains.
I must admit I can see the attraction of those MSM engines with them being all bronze, certainly for regular steam use.