Can anyone identify this old 2-rail power truck with 7-pole motor?

I have a feeling it may be a ives or marx.

But I dont have enough confidence in my guess.

I don't think it is either Ives or Marx.  

It looks like a self-contained 2-rail truck.  the sideframe castings look like bronze.   I don't think either Ives or Marx ever did 2 rail.   It is an AC or DC  motor?

I have never seen what Adams and Sons put in their diesels, but that might be a possibility.   The sideframes are definitely a representation of the EMD Bloomberg truck.    Adams and sons made kits for a number of EMD locos I think.

It does not appear to be ALL Nation or General Models.   I have seen a lot of their mechanisms and never saw one like this.  

Just some thoughts.

It has what appears to be a wound field, so its an AC/DC motor that can run on either current. A rectifier would be needed for reversing.

It likely dates from the late 1930's to early 1940s. Adams and Son is a possibility or it could also be an early Lobaugh power truck, with that type of axle geared drive.

My guess is a Wentz FT circa 1947

Good observations by prrjim and Ed Bommer, Thank You very much for the input. Yes, it can run on AC or DC. It's 2-rail O-gauge, certainly not Ives or Marx.

The truck sideframes are an add-on, so MAYBE the mechanism is prewar ... but postwar seems more likely ... ?

Wentz FT circa 1947 ???  I can't find any info on that so far.

Here are a couple more pics, with the sideframes removed. 

Wentzco was the vendor. The EMD "FT" diesel was the engine being modeled. They were a brass or bronze kit way back when. If you search for Wentzco, you might pop up some info. I have seen them discussed various times and places.

Simon

O Scale Railroading back issues.  I wonder if OGR has an archive the these things?

Don't get too excited - even doorstop collectors turn noses up on these things.

It's not a doorstop, it's a functioning motor with a possibly interesting history. It appears to have been a high-quality item in its day, with a 7-pole motor and fully enclosed gear train. The axle-boxes can rotate slightly relative to the motor to give equalized suspension, as compared to a rigid frame.  

I plan to install it in another vintage item, so I will have a fully operational relic.  

From my research so far, it doesn't appear to be an Adams & Son item. Their FT's had some oddball chain-drive trucks, as pictured below.

Adams & Son FT power trucks

I posted another mystery motor in a 3-rail thread and had very helpful and interesting input:   https://ogrforum.com/d...ent/4245430052273116

I love the details of the casting on the journals. Very nicely done.

You should restore it and lubricate it, and this motor will last for ever.

Yves