These cars were rebuilt by the D&RGW narrow gauge shops. Originally they were built against the
orders of management so they kept their initial numbers. They were built from excess boxcars in the
3000-3749 number series and stock cars of the 5500-5849 series. Thsi book explores the spotting features between
the types as well as other details of the car and how they were used both in the oil service industry and elsewhere.
There is a combination of vintage and more recent photos in the book.
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Below are some sample pages from the book.