Alley in Pisa, Italy

by Lars Kotthoff

submit your photo


Hall of Fame
View past winners from this year

Please participate in Meta
and help us grow.

Questions about the history of photography, including why things are the way they are today.

learn more… | top users | synonyms

2
votes
0answers
92 views

What process was used to make this glass plate?

I have an old glass positive photo from about 1850. Does anyone know what process was used? Heliotipy? Puharotipy? I'm think that the author of the image is Puhar I have an appointment with the ...