Dating old tintypes
Collecting antique surveying instruments, books and memorabilia can be a lot of fun if you follow a few simple guidelines.Start out slow with smaller, less expensive items that don't cost an arm and a leg. If you are really lucky, you may have some early ones in ‘leather’ cases or in ornate shiny cases made of a black or brown plastic like material. Photography started in 1839 but at that time was really in the hands of a few scientists, professionals or wealthy amateurs. These may be loose or in albums or they may be in the form of postcards or even fragile black and grey glass negatives.
It’s not that their surfaces were as sensitive as those of daguerreotypes.
Patented in 1856, tintypes were seen as an improvement upon unstable, paper daguerreotypes and fragile, glass ambrotypes.