It exhibits the characteristics of a mirror at many angles.
Once you have determined that your image is a 'dag', several clues can help establish a date range.
Around 1856 a new composite made from saw dust and varnish was used to create the first plastic-like cases.
This material was called thermoplastic, as the mixture was heated and then formed in dies.
Early daguerreotypes were protected by only a mat and glass, and then placed in a case.
Early preservers were fairly plain, usually adorned with simple patterns.
Most clues are evident by just looking at the image. This is not recommended for the amateur or skittish.
They changed significantly about three different times, with lesser evolutions along the way. The earliest ones had a 'pebble-like' texture, and were usually octagon or oval up to about 1845.Note: These were used with daguerreotypes, ambrotypes, and tintypes General Rule: Thermoplastic or Union case dates after 1856.Clothes, hair styles, and personal appearance changed significantly throughout the life of the daguerreotype.At the height of daguerreotype popularity in 1853, there were reportedly 86 studios in New York City.The daguerreotype is very easily detected, even by someone who has never seen one before.Third-party trademarks are used solely for distributing the games indexed herein and no license or other affiliation is implied.Ceux qui aiment les aventures narratives et le bafouement des libertés individuelles se souviennent peut-être d'Orwell : Keeping an Eye On You, le jeu d'espionnage des masses sorti l'an dernier par Osmotic.The daguerreotype was typically placed under a mat, which was covered with a piece of glass .Usually the image, mat, and glass were then taped together around the edges.About this time the finish was a little nicer, having a 'sandy' texture. These included the nonpareil, acorn, elliptical, double elliptical, and some other variations.Beginning in the early 1850s, the mats became smooth, with some engraving artistry, simple at first but more complex by the late 50s.