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  1. #1
    agnosticnikon's Avatar
    Join Date
    Jan 2012
    Mississippi mud
    Multi Format

    Positive image on brown glass... what is this?

    While on vacation, looking in antique stores, I came across what I thought was a glass plate negative on dark brown glass. It was cheap, so I had to buy it. Upon closer inspection, I realized it was a positive image. I've never seen one of these, and have no real experience with glass plates. The image looks to be of two women in victorian type dress. It looks like it might have been mounted in some type of case at one time. I don't believe it's a dag, as it doesn't have any of their characteristics, but I really don't know what it is, or how this was used.
    Anybody have any ideas?

  2. #2
    jnanian's Avatar
    Join Date
    Jun 2003
    Multi Format
    Blog Entries
    hi agnosticnikon

    its either a wet or dry plate ambrotype ...
    they were made from the time of the civil war (wet plate ) until maybe the 20s-30s ( dry plate )

    the wet plate ones are made with collodion ( spiked with other stuff ) and silver nitrate and a portable darkroom
    the dry plate ones are made by using silver gelatin emulsion on glass ...
    sometimes instead of glass metal was used ( ferrotype / tin type )

    there are still people making images like this even today ( and even here on apug )
    just google
    website+blog: new entry: new paper negatives rockland emulsion
    NOV 1 2015 - DEC 1 2015

    50% of all profits from my IMAGE KIND SALES will be donated to the RI FOOD BANK

    since my start of donating from image sales ( haitian earthquake ) i have donated between 500 adn 700$ USD
    thru nov 19 35 to 40% off !



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