Roofs of Various Names (was:LNE's Black Boxcars)

James D Thompson <jaydeet@...>

Around 1930, the first of these "solid steel," external-carline roofs
appeared, without any raised panels in the center of each section. That's
what I would call a "flat panel roof" also.
They're a bit older than that. NYC's first USRA-design boxes of 1920-21
had the Murphy flat-panel roof, and the Hutchins Dry-Lading roof was in use
as early as 1916.

David Thompson

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