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Signal Flags
Six signal flags for shipowners used at the Portland Observatory.
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Subjects
Deering, G.
Deering, J.
Knight, Jacob
McLellan, A.
Merchants -- Maine -- Portland
Merrill, William
Newhall, A.
Observatories
Portland Observatory (Me.)
Signal Flags
Source
Maine Historical Society
Coverage
1810
Collection
Maine Historical Society
Rights
Maine Historical Society
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