From Mathew Brady's Civil War photos to Ansel Adams' landscapes to Irving Penn's magazine shots, antique and vintage photographs are highly collectible. Photography was introduced in the U.S. in 1839, and immediately became popular.

Daguerreotypes dominated the field of photography until the mid-1850s. A daguerreotype is a copper plate covered with a thin layer of polished silver that looks like a mirror when held at a certain angle. By the mid-1840s, they were affordable for the average person, and it is therefore relatively easy to find old daguerreotypes today. Most daguerreotypes were studio portraits, where the subject posed for the photograph at the photographer's studio. Daguerreotypes featuring outdoor or street scenes are far rarer.

In the mid-1850s, ambrotypes replaced the daguerreotype. An ambrotype is a negative that has been put on glass and placed against a black background to make it look like a positive. Ambrotypes were popular until the 1890s. Another example of a cased image like the daguerreotype or ambrotype is the tintype, which was patented in 1856 and was made using a thin sheet of iron.

Stereoviews, also known as stereographs, were also created in the late 1850s and reached a peak of popularity in the 1870s. Stereoviews were cheap photographs that simulated a 3D view. In the 1880s, various companies decided to mass-market stereoviews that featured pictures of foreign locations to homes and schools. Stereoviews remained popular throughout the early 1900s.

In 1859, the carte de visite, which had been created in France, was introduced to the U.S. The carte de visite, or CDV, was a 2.5 inch by 4 inch print made of paper. As it was more affordable than previous forms of photography, it was accessible to a wider group of people. Many Civil War soldiers had their photographs taken and printed as a CDV.

Real photo postcards are another popular form of photographic print. Real photo postcards were made by developing a photograph onto postcard-sized photo paper with a postcard backing. They are still made today.

The most popular paper photographic print is the gelatin silver print, or black and white photograph. Gelatin silver prints have a long lifespan if well-maintained. Most 20th cen...tury photographs were monochromatic, and it wasn't until the 1960s that color photography became commonplace.