Bought at a respectable auction centre in Yorkshire, Tennants of York in 2014 and been in plastic covers ever since.
I’m selling my whole collection of 5 notes from 38 to 52 most in pristine condition, so please watch this space.
These two notes must have been together forever to be so close although could be a coincidental.
Hidden number when held to the light is B4038 on both notes, there’s a name for this but sorry I do not know it.