This tintype portrait features a beautiful young woman wearing a lovely dress. Her jewelry includes a bracelet and a ring. According to Wikipedia, tintypes were made by “creating a direct positive on a thin sheet of metal coated with a dark lacquer or enamel and used as the support for the photographic emulsion”. Tintypes were most popular during the 1860’s and 1870’s.
THE CABINET CARD GALLERY 
What a lovely image. I wonder what colours were in her attire. I could see at least two shades of roses in her hat which seemed likely to me to be dark pink and lighter pink. Very nice.
Early emulsions were sensitive to blue (showed as white), insensitive to red (showed as black). So the image details were determined by the blue content.
Tintypes are a treasure trove of photography. By their nature they are reversed (left to right). Correcting this, and further photo-shopping as needed or desired, produces a conventional print that enhances the family history and photo records. (Economical copies for interested relatives often are much appreciated.) I have done many … image quality of tintypes can match that of Cabinet Cards. They were easily scratched or bent, however. Beautiful subject on this one … thanks for showing.