[E. L. Moore's Carolina Foundry; J. R. Fisher collection]
E. L. Moore's Carolina Foundry appeared as a Dollar model project in the January 1972 issue of Model Railroader.
If it actually did only cost a 1972 dollar - which is around $5.75 in today's money - and it likely did since it's more-or-less built only from balsa and typing paper, it's a convincing, well-built model for a low price.
All that metal siding and roofing is made with Mr. Moore's tried-and-true method of scoring typing paper and painting with a metallic colour. He's also applied some rust coloured paint on this build.
One thing that makes this model interesting is that each side has interesting features and there's no nondescript backside. It's a good example of the idea that a good design can carry a model's visual interest even if its materials are simple.
As would be the case in real-life, the roof is far more rusted than the walls.