It came in a group with one other unbranded engine and several old German tin toy boats. This has no makers marks anywhere. I don't know if it's missing any parts. It has no boiler, I think you would hookup a steam line to the brass/copper pipe sticking out of the side at the top and that would power it. Unlike most model steam engines that hook up to a fly wheel to power drive bands, this one has two connecting rods powering a crankshaft with a heavy fly wheel and a drive shaft running off the other end.Looks like one application would have been as a marine engine in a model boat. The top half is all brass, including the plate it sits on, as are the connecting rods. The rest is magnetic, so steel or maybe some cast iron. All attached to an old wood base. Wood base measures 5 1/4 x 4 1/8 inches.
Engine, from the front of the flywheel to the end of the drive shaft is 7 6/8 inches. From the bottom of the metal base (or, the top of the wood base) to to the top of the nut on top of the brass cylinder, it is 6.5 inches.
Very heavy, 3 lbs 5 ounces as it sits there. For what it's worth, when you manually spin the flywheel, the connecting rod closest to the flywheel is sliding up and down in a track of the plate behind it. If you look at the picture of the back of the engine you'll see a hole in the back of the brass plate.At almost the bottom of its rotation there is a hole in the connecting rod guide that lines up with the hole in the back of the plate and then you can see a cavity inside of the connecting rod block - don't know why, but it looks purposeful. It's not shown in the picture - I didn't realize it till I was writing this up. Obviously, never fired up (because I've never fired up any steam engine, I just collect a few because of their cool industrial workings). In the second to the last picture I show this engine with some large scale Elastolin steam engineers. The tallest engineer is about 4.2. If you pay by 5:00 E. I use lots of bubble wrap, peanuts, and good boxes. In a group of multiple pieces each item is wrapped individually. I use a loupe to examine the toys while I'm listing them and I try and mention the significant condition issues I see. I leave feedback so please do the same. If there is any problem with the item contact me first before leaving feedback, and well work it out. The item "Vintage Vertical Marine Steam Engine, heavy/brass 2 connecting rods, drive shaft" is in sale since Saturday, May 1, 2021. This item is in the category "Toys & Hobbies\Vintage & Antique Toys\Tin\Other Vintage Tin Toys". The seller is "ascot" and is located in Plymouth, Michigan. This item can be shipped worldwide.