I reached that metallic paper after reserching Daguerrotype. Someone claimed , the prints on that paper resemblance Daguerrotype. Highlights would be glow and mid tones would have an sheen. I first hear about metallic color paper from you Neal. As I read from wiki , the 3dimensionless of Daguerrotype comes from polished silver back ? I looked to the samples of Kodak paper , they have heavily machined and I cant find words to comment on them. But they look like a woman had had been used heavy make up with what ever she could get .I remember now , Ilford Slide Prints have an sheen on colors. Is there metallic bw papers also ? May be I can contact print my 66s with them.