385. Front and side view of EC-2 vessel boiler by Babcock and Wilcox Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
386. Front and side view of EC-2 vessel boiler by Babcock and Wilcox Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
387. Diagram showing 2 rows of drum internals for the U.S.S. North Carolina Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
388. Babcock & Wilcox separately-fired superheater unit Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Location: unknown Date: undated Format: Image Agent: unknown
389. Photograph of factory where 10,000 automobile frames a day are manufactured using automation. Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Location: Milwaukee, WI Date: undated Format: Image Agent: unknown
