Stephenson's Rocket in O gauge. Who Made This?

I would have no clue, just the fat gear wheel & sliding copper collector would make me say Marx, but the bumpers on the front of the loco & the back of the tender make me think European.

I love the top of the smokestack.

My first impression was also Marx or based on a Marx motor. 

I had to bend the points on the smokestack down a bit to clear the bridge!

Eric

I'd guess European / British made.

My guess is that someone kit-bashed it.  I recognize the Marx pickup and others have suggested a Marx motor.  It looks like a European tender, with barrel added and a heavily modified engine that was kit-bashed using many European parts.

The boiler looks as if it is hand painted and hand lettered, the railing at the rear looks like it is home-made and soldered together and the same goes for the smokestack struts.  

I'll agree with the homemade opinion wrapped around a Marx Type L motor used in their low end M10000 streamliner and diesels.

Steve

Whoever crafted this model did an amazing and credible job! BRAVO!

I once owned and operated the well known Hornby large scale live steam version of this pioneer loco (circa 1980's), whose prototype was the winner of the British Raintree Trials. I also had the very nice carriage that was available as a separate purchase, but alas, the engine did not have adequate power or traction to pull!

The tender and barrel look like Issmayer.

George