I am not the sentimental type on the whole, but while doing some tidying up I came across an old boarding pass. It was for BA175, Heathrow to Kennedy, seat 64A, taken in September 2017. Which made me pause, for reasons which will be well understood by many here. It was a boarding pass that was issued on card at LHR T5.

However it has, I would say, faded away by 50% or so. Here is a part extract. And I've got some older boarding passes which are almost blank now.



Now a photograph is now digitally preserved forever, which I've done, and doubtless a bit of changing with the settings can restore the clarity. But
a) Are other people seeing better ink preservation if boarding passes are stored in a book or an airtight tin, for example?
b) What can be done to preserve what is left of the original boarding pass? A bit of me doesn't mind how memories fade, but I'm also thinking it's gone far enough!