LC Subject Heading: Scientific equipment--Maine--Portland
- Historical Items (2)
- Tax Records (0)
- Architecture & Landscape (0)
- Online Exhibits (0)
- Site Pages (0)
- My Maine Stories (0)
- Lesson Plans (0)
Historical Items
These results include photographs, documents, letters, paintings, artifacts, and many other kinds of Maine related items from collections around the state and elsewhere.
Item 12409
Neutron reactor shell, Portland Company, ca. 1970
Contributed by: Maine Historical Society Date: circa 1970 Location: Portland Media: Photographic print
Item 12538
Chapman electric neutralizing machine, Portland Company, ca. 1904
Contributed by: Maine Historical Society Date: circa 1904 Location: Portland Media: Ink on paper
