Оригинальные дагеры от J.L. M. Daguerre. Очень редко. Позолоченный в тонизирующей ванне в процессе, представленном публике в 1840 году. Картина была восстановлена в 1913 году Э. Стенгером и в 1955 году Р. Скопецем. Это одна из двух работ Дагера в Чешской Республике

Коллекция портретов из Национального художественного музея Чехии. Национальный музей в Праге, основанный в 1908 году, собрал документы о развитии многих технических областей, естественных и точных наук, а также промышленности на территории современной Чехии.

Invented by Louis Daguerre and introduced worldwide in 1839,[3][4][5] the daguerreotype was almost completely superseded by 1856 with new, less expensive processes, such as ambrotype (collodion process), that yield more readily viewable images. There has been a revival of the daguerreotype since the late 20th century by a small number of photographers interested in making artistic use of early photographic processes. The first authenticated image of Abraham Lincoln, a daguerreotype of him as U.S. Congressman-elect in 1846, attributed to Nicholas H. Shepard To make the image, a daguerreotypist polished a sheet of silver-plated copper to a mirror finish; treated it with fumes that made its surface light-sensitive; exposed it in a camera for as long as was judged to be necessary, which could be as little as a few seconds for brightly sunlit subjects or much longer with less intense lighting; made the resulting latent image on it visible by fuming it with mercury vapor; removed its sensitivity to light by liquid chemical treatment; rinsed and dried it; and then sealed the easily marred result behind glass in a protective enclosure.