Here is an O gauge Marx 0-4-0 battery powered (DC current) sheet metal steam engine with a plastic boiler front, plus a 6 inch tin tender to match it!  I did not have any D cell batteries around here, so I used a DC powerpack to test the engine, and have included a short "bench test" video so that you can see it runs in both directions fine.  On that plastic boiler front both of the fake marker lights are still there and solid, as is ONE of the two side pieces (hinges?) - if you look at the front view photo, you can see this.  The tender included is a New York Central black 4 wheel 6 inch tin lithographed tender with gray striping and white lettering (which is more legible that it looks in the photos).  It is equipped with 4 plastic wheels on metal axles and has the punched type sliding tab and slot couplers on both ends.  Photos show the engine and tender from all 6 sides, with a yardstick in the shots for size reference.  The video shows the engine working - please note that you may need to clean the rear wire that compresses the batteries (I did not do that) to get it to make better contact.  Priced to sell, with only actual USPS Ground Advantage or Priority Mail shipping on the 1 1/2 pound package charged!