In printing, duplitized stock is exposed with one record on each side, the cyan record being toned a complementary red with a copper ferrocyanide solution, and the red being toned blue/cyan with ferric ferrocyanide solution.
The cyan record is toned a complementary red with a copper ferrocyanide solution, and the red being toned blue/cyan with ferric ferrocyanide solution. In printing, duplitized stock is exposed and processed with one record on each side.
In printing, duplitized stock is exposed and processed with one record on each side. The cyan record is toned a complementary red with a copper ferrocyanide solution, and the red being toned blue/cyan with ferric ferrocyanide solution.
In printing, duplitized stock is exposed and processed with one record on each side. The cyan record is toned a complementary red with a copper ferrocyanide solution, and the red being toned blue/cyan with ferric ferrocyanide solution.