The robertstrains.com website, hosted by an OGR Forum member, has photos of mostly all of Frank’s Roundhouse O gauge non-tinplate production. Here’s a link to the page with closer-up views of those 3 Yuengling box cars shown in the photo posted by milwrd above which as Ramon posted were produced by Frank’s Roundhouse: http://www.robertstrains.com/Frank61.htm
There’s also a photo of the Stegmaier Beer box car on that page.
Bill