Yesterday we went to the flea market and i picked up this little gem. It's called an Ambrotype which is quite an old process of photography. It was first used around the late 1840's and prominently till the 1880's. This one was made roughly around the 1870's.
The glass plate is first coated in a Collodion solution (nitrocellulose in ether or acetone) and then dipped in silver nitrate, it is then exposed while it is still wet and developed and fixed. The resulting image is a negative so the back of the glass plate is coated with a black varnish to make it appear positive. In the end the final object is entirely unique.
aaah, flea markets...
xx.
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