AMBROTYPE (1854 to the end of the Civil War)The ambrotype is a thin negative image on glass made to appear as a positive by showing it against a black background. It couldn't withstand travel or being carried in a locket as a daguerreotype could. The tintype actually does not contain any tin, but is made of thin black iron.
Similar to daguerreotype in assembly of parts: 1-Disadvantages of ambrotypes: 1. sold for a penny or less, making photography universally available. It is sometimes confused with ambrotypes and daguerreotypes, but is easily distinguishable from them by the fact that a tintype attracts a small magnet. The earliest tintypes were on heavy metal (0.017 inches thick) that was never again used.
Either fault leads to the same result: fading image, discoloration, etc. Popularity: The tintype was very popular during the Civil War because every soldier wanted to send a picture of himself with his rifle and sword home.
Dating hand tinted photographs
This sealed packet was then force fit into a special wood case and was often padded with velvet or silk. The first step was to make a negative image on a light sensitive paper.
Many times, the silver image tarnishes with silver sulfide in the same way as silverware. Step two was to make a contact [print] with a second sheet of sensitized paper to make a positive print. As the public sought lower prices, the cases (which cost more than the finished photographs) were eliminated.
Size range from one-fourth plate and are often datable by the Potter's Patent paper holders, adorned with patriotic stars and emblems, that were introduced during the period.
After 1863 the paper holders were embossed rather than printed. During this period "rustic" photography also made its debut with its painted backgrounds, fake stones, wood fences and rural props.
To look at more precise ways of dating your family portraits, return to the Dating page.