Faded vintage poster

Hey there everyone! I have a general question. I have a vintage poster—framed and very large (24” by 36”). It’s a Horace Taylor poster called “Brightest London” by the Dangerfield Printing Co. and reprinted by the London Transport Museum. Unfortunately, it has major fading due to the sun I’m guessing. How much of that would effect its value??

 

Need pics. Make sure file size isn't over 1MB.

 

Major fading will seriously effect the value. He did 2 "Brightest London" posters. Both have been reproduced.

 

I know!! I can’t figure out how to make it smaller. I did get an answer—the fading is so significant it effects the value a lot I assume. How do I make my files smaller??

 

Where are you keeping your picture files. What did you use to take them - an actual camera or a cell phone - and if a phone, what type?