<< The analysis was of a piece of
unprocessed Fresson paper, manufactured in the late 40s or early 50s.
There was definitely more than one coating. >>
This is very interesting as I never knew that. I don't know if this was
mentioned in Luis's book at all. I will have to read again this weekend.
Was this a monochrome or color paper? I am interested to know (or to guess
anyway) whether the multilayer is only for tone control or whether they have
found a way of coating separate color layers and then expose and process all 4
colors at the same time. That would have been pretty advanced in their time,