I've recently tried putting Ilford Galerie through a silver nitrate solution, and it certainly takes it well towards POP behaviour. Galerie gives a weak image with printing out anyway, but this is blueish. After the silver nitrate treatment the colour is POP purple, and much stronger. I used a 2% solution, soaked for 5 minutes, rinsed briefly then air dried. Has anyone else tried this?
No. but it certainly sounds interesting Martin.
Have you tried gold toning it? If so what was the colour like?