I bought a boiler with the title "Vintage Stuart Turner 500 Babcock Live Steam Boiler Spirit Fired Burner Stationary Engine" on Etsy by the seller CogVintage. The boiler has several differences from the other Stuart 500 Boilers I have seen. The boiler barrel is slightly shorter, the Steam drying tube (superheater) is reversed, the two top bushings are in a different place and there are only three bushings on the front of the boiler barrel. And lastly the lower front panel fire door opens. I have attached three pictures and the original ad is at:https://www.etsy.com/listing/535400566/vintage-stuart-turner-500-babcock-live?show_sold_out_detail=1 This is my first post on HMEM. Stuart did not think they made it, thought this was long ago. I am satisfied with the purchase and am excited to find out if this was made by Stuart or by a customer.