Mexico City Work Motor Identified

Thanks to a fascinating Facebook page I stumbled upon called Tranvias de Mexico, I have now managed to identify a piece of equipment that formerly was listed as "number unknown." The car in question is Servicio de Transportes Electricos del Distrito Federal 1422, shown here, which was restored and placed on static display at the transit agency's museum in Mexico City about 15 years ago. I knew that the car had been in the 1400-series on SDTE, but until now I never knew its exact number, since the car was never lettered after restoration for some reason. Its PNAERC record has now been updated.

I'm still not clear on when this car was retired. The above photo, from the same Facebook page, shows it late in its service life and possibly after retirement - to the left is SDTE 1303, a single-truck line car whose body is preserved at the same museum as 1422. But it appears that it was simply kept stored at Tetepilco Shops for years after retirement until the transit agency built its little museum there at Tetepilco in 2006. The work car is interesting not only because gondola motors like this are very rare in preservation, but also because it may have the last extant pair of Brill 23G trucks. They're a pretty weird and distinctive design that Mexico City seemed to like using for its work cars.