Metal frame and brake wheel on boxcars

This is an Athearn 11256 N Scale Conrail PS-2 2893 Covered Hopper #883532

They come with a sprue of crossbraces for the top that allow you to add them if you are running empty

Only a couple of years later

Con-Cor 95203 HO NH Heavyweight 65' Branchline Solarium-Observation Car #5004 VariantsUnitPrice_number_131.71 Metal frame and brake wheelThis is a Con Cor 95203 HO New Haven Heavyweight 65' Branchline Solarium Observation Car with Lights #5004. This features Highly Detailed Car Body with Separate Wire Handrails, Factory Installed Interior Lighting Works on DC or DCC, Complete Underbody Details, Working Diaphragms, Scissors Gates at End Doors, Free Rolling RP 25 Metal Wheels, Working Knuckle Couplers, Accurate Paint Colors, Complete Interior Details, Super Detailed Trucks, and Operates