MDC/Roundhouse released these models in the late 1970s. They were available either with or without "Youngstown" doors (Youngstown on the left car above). Here's what Roundhouse had to say about them -
This 50' Pullman Standard five-panel box car design was introduced in the mid-1970s and proved to be a popular model with all of the railroads.
Athearn acquired all the old MDC/Roundhouse tooling circa 2005 and reissued revised versions of these cars in Athearn packaging in 2020 -
Here's what Athearn has to say about them -
It was the mid-1970s, and the incentive per diem box car boom was just beginning. New, brightly painted box cars seemed to appear overnight. Many were lettered for various short lines. Pullman Standard (PS) was a significant builder of many of these cars. The 50' outside post, non-terminating end box car, became the foundation for new per diem cars built in the 1970s. The 50' PS cars also varied in door configuration and style to better suit each customer. These cars can still be seen today in the modern railroading scene.
Athearn Features -
- Fully-assembled and ready-to-run out of the box
- Packed in a jewel box for great display and storage opportunities
- Razor sharp painting and printing
- Screw mounted trucks for accurate tracking
- Body mounted McHenry operating scale knuckle couplers
- Operates on Code 55 and 80 rail
- Minimum radius: 9 3/4"