This fan book published in 1964 would qualify as a treasure for the flash of red challenge. The price tag on the cover is very revealing -- 29 cents.
I know there are other Beatles fans out there... I challenge you to dig up and photograph some of your memorabilia. The fan book lurking underneath is titled "The Beatles on Broadway" and it also retailed for 29 cents.
Definitely a treasure. I used to go to The Cavern regularly when I was a teenager. I didn't actually see The Beatles there before they were famous but I did see other Swinging 60s pop stars before they made a name for themselves.