The image looks somewhat similar to "silver plated" prints, specifically if the direct toning method is used.
http://www.alternativephotography.com/wp/processes/gelatin-silver/silver-plating
Type: Posts; User: O_H; Keyword(s):
The image looks somewhat similar to "silver plated" prints, specifically if the direct toning method is used.
http://www.alternativephotography.com/wp/processes/gelatin-silver/silver-plating
See Commission Regulation No. 348/2013. To use dichromates after September 2017, you need to have applied for authorisation, and the last date for application is in March 2016.
Pictorico can be bought at least here: http://www.pictorico.eu/ and behind this link you'll find couple of local sources for transparencies:...