1. Babcock & Wilcox separately-fired superheater unit Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Location: unknown Date: undated Format: Image Agent: unknown
2. EC-2 vessel boiler by Babcock and Wilcox Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
3. 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
4. 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
5. Side view of vessel boiler by Babcock and Wilcox for USS Iowa Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
6. View of tubes inside EC-2 vessel boiler by Babcock and Wilcox Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
7. First EC-2 cargo vessel boiler by Babcock and Wilcox Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
8. Thornycroft boiler Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
9. Water-tube boiler Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Date: undated Format: Image Agent: unknown
10. Yarrow steam boiler Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Location: unknown Date: undated Format: Image Agent: unknown
11. Yarrow steam boiler Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Location: unknown Date: undated Format: Image
12. Yarrow steam boiler Collection: Early 20th Century Engineering Lantern Slides Set: Machinery Location: unknown Date: undated Format: Image
