Built-in the mid-1920s for a variety of railroads, this version is an example of the Osgood Bradley commuter coaches as done for the Boston and Albany. To complete the kit you’ll need diaphragms (if modeling non-B&A variants that had them), window glazing (I suggest microscope slide covers), and wire for the underframe brake piping and grab irons.
This version of the N scale is a simple body and frame. Trucks are something that we’re trying to test in N scale to be sure we can make these to our standards.
The prototype coaches were built with some small variations but saw service with a number of owners, both original and second-hand. Below is the list as it is currently understood.