American AcornsCapt. Joseph A. Clark, Company C, Fifteenth Maine Infantry: portrait no. 10 on a plate in The Story of the Maine Fifteenth (1890)
Image · dated 1890 · source: H. A. Shorey, The Story of the Maine Fifteenth (Bridgton, Maine, 1890), plate facing p. 36; Internet Archive copy, storyofmainefif00shor. Public domain.
How it is shown: Cut from the complete plate of 18 numbered portraits to show no. 10 alone, with its number; the complete plate is held and published beside it. No retouch: the faint image and the show-through from the facing page are as printed.
Keep in mind: The plate's key names him; the book's preface says the portraits are, with few exceptions, copies of photographs taken during the war. That this officer is the family's Joseph A. Clark rests on the site's earlier identification.