Public domain
Gem Theatre and boat landing, Peak's [i.e. Peaks] Island, Portland harbor, Me.
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineGem Theatre and boat landing, Peak's [i.e. Peaks] Island, Portland harbor, Me.. 1900-01-01. Detroit Publishing Co.. Detroit Publishing Company Collection, Library of Congress. Public domain.