Need help identifying maker of Japanese Brass Locomotive

[ChristianJDavis1]

So I recently aquired an HO scale model of a JNR D51 class mikado, and while knowing a bit about the prototype locomotives, I am somewhat uninformed when it comes to the maker of said locomotive. I am positive that it is by a Japanese manufacturer, but which one I am unsure of. There are no visible markings as to who made it in any if the usual places (I have not had a chance to open it up and look near the motor, though). It also came with no box, so that does not help at all.

What I would really like to know is if anyone out there may have a clue as to who manufactured it (based on visual indicators or perhaps previous experience with locomotives of this caliber). I know it is a long-shot, but I hope someone might be able to help me out. Thank you for looking, regardless.

[Spades]

Minimal effort.  I would start with Tenshodo.  RMC use to have a column, (I never read it) on tinplate and early pioneers of the hobbies.  Topics included the early brass importers.  If you find an index for RMC or get in contact with the columnist.  I know this post wasn't all that helpful

G

[Spades]

This is a just a little more helpful: http://steamlocomotive.com/model/HO-brass.php     A website for early brass

G

[ChristianJDavis1]

Thank you to everyone who provided resources for me. I learned from someone off-forum that the engine is actually by a company called Adachi, who produced these as kits during the 1960's. I hope to detail and paint this locomotive to match D51 498, which still operates to this day. Fortunately for me, the detail changes between its as-built configuration and its excursion appearance are minimal, so this prototype allows duel-era usage (with some fudging of details, of course).