1 item found
Item | Title | Type | Subject | Creator | Publisher | Date | |
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2932 | Eclipse-O-Scopes to View the Sun |
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| Description: These were manufactured by J.C. Freeman & Company, Opticians of Worcester, Mass. They measure about 3" X 5" with cut-out slits through which to view the sun during an eclipse. Also included are rectangular films in small envelopes. |