Hello, I was referred to this site and I am wondering if anyone can help me date some photos based on the Kodak watermark stamped on the back, which states

THIS PAPER
MANUFACTURED
BY KODAK

I also noticed that underlining of the 'R' and 'E' in MANUFACTURED would alternate from watermark to watermark like so,

MANUFACTURED MANUFACTURED MANUFACTURED MANUFACTURED

Any help would be appreciated.
Thanks.