No, it´s a serial production vehicle without missing parts except the number plate.
It was worth a shot… 
Hiya, Tom!
I’d like to offer that your submission is a Japanese 75mm self-propelled howitzer on a “Chi-Nu” medium tank chassis.
Russ
Soon-to-be AIRMAN
Proud son of Rose and Wes
Near miss. :mrgreen:
Well then… perhaps our special guest star is Experimental Tank Type 2 HO-I, my dear Mr. Tom?
More or less correct.
The tank was not experimental. He was officially adopted in 1942 under the designation type 2 gun tank Ho-I but with the revolving turret it was more a CS-tank than a SPG.
It was armed with a type 99 75 mm tank gun (a modified type 95 75 mm field gun) in a remodelled Shinhoto-type turret. The prototype was based on the type 97 Chi-Ha but the serial production vehicles were built using the Type 1 medium tank Chi-He chassis and superstructure. A total of 30 vehicles were built and assigned to the 4th tank division.
Your turn.
Thank you very much, my dear Mr. Tom. And now, honorable ladies and gentlemen – back to the wheels again! Tell me please, what was the official designation of this completely forgotten contraption?
I’m not 100% sure, but I think it’s the rear part of the Alvis Straussler Armoured Car.
Very good observation, my dear Mr. Sergej – our mystery vehicle was the very first prototype of the Alvis Straussler LAC-1, ordered by British Government and manufactured in 1938 back there in the Csepel factory (Budapest, Hungary). It was refused by British armed forces, but almost accepted for service within the Royal Hungarian Army.
My sincerest congratulations! You have your well-deserved turn again.
Thank you Librarian.
Here is my offer. It looks like a mixture of three different vehicles,
but it shouldn’t make to many problems to solve this.
Oh, what a nice snapshot of that cute Romanian R-1 light tank!
It was a wonderful little runner based upon the CKD AH – IV. Here you have another nice snapshot:
Hey Librarian and others, where do you find your info on these tanks? I hope you don’t do it all be Googling things…
Correct as always Librarian!
If you don’t have any idea about a quest,
like me abouit the 75 mm-es Önjáró páncéltörő löveg M 38,
you should use google. If you has any known parts like the
chassis, you can look on serval sites espacialy for the coutrys
and maybe for exported or captured and converted machines.
That’s my way to find something, but I would like to know how
other people solve it.
And yes, it’s your turn Librarian.
I have no clue about anything on any of these. I’m just going by looks, and you guys know all the specs and everything… This is like fighting a guy with a Tiger using a Colt… This is kind of fun.
Thank you, my dear Mr. Sergej. In the very same time, I have to admit that my methods are the very same as yours. You see, my dear Mr. Prime Minister, different armored vehicles are usually manufactured by implementation of some standardized components, distinctly unique in their appearance. For example, numerous Czechoslovakian constructions used relatively large, rubber-rims riveted roadwheels with 32 rivets – not spoked wheels, monoblock wheels or perforated wheels. Look at every authentic ČKD construction (TNHP, TNHB, TNHS) and you will be able to see that riveted wheels are representing one completely clearly visible common denominator of the Czechoslovakian tank industry.
And that is only the beginning of every meticulous, but in the very same time almost automatically conducted visual examination. With a litlle bit of patience, and with a fraction of circumspection you will be able to identify almost every armored vehicle produced on this planet.
Here you have another completely clear snapshot (almost a portraiture-quality one!) of a less-known vehicle, which used completely standardized, already available, utterly distinctive mechanical components. Concentrate on the chassis, suspension, wheels and cannon. I am assuring you that the proper answer will be in your possession very soon!
Hah, all that sounds good Librarian, but I don’t know any parts used in most of these things, and I certainly don’t know about what was produced where.
No problem at all, my dear Mr. Prime Minister – please, be a little bit more patient and just compare all those vital things - you will be able to reach your success.
For example, this armored vehicle evidently has not those large single road wheels, but it has the suspension with two axles, each of which carries a four bogie-wheels interconnected with a leaf springs and levers, as well as four top rollers. Obviously, this is neither German nor French construction… 
It isn’t German? O.O’
I’m glad you all are giving some info on finding these vehicles. I’m with Churchill on having a hard time looking for things. But it’s been fun to read and look for the postings.
Bump, someone want to get started again? (Someone except me)