metal negativ film ? no problem

- I was looking for a method to let mi pictures live longer than 100years..
so I almost found one, it need just some few little corrections,
wonna see first test results? remmember i wa uisng pooor quality materials so it nothing rlly special for now but it is first step. Now i know what to do to improve it.. enjoy..

This is how it looks like when liightened from behind -> so ucan use metal negative as a oryginal for copying the copies on p.paper xD great so many things to use for ..

on the left side ucan see test print and on the right, there it is a result ;)
I also destroyed it up a little during test becouse i needed to find some ..ways.. if are they correct ,,,well the most correct ways are visible, some of parts vanished and some parts stayed untoched ;/ but I undestund now better the proces itself xD

ps
I know there is propably something like that and I am not the first one. But I havent seen sucha thing, I just made it in my head , if someone else thinked it up before me,..then welcome u are not alone.
For now i will call it IncrasedDuration Method