Here's the story...
 
Owing to a misprint I have a significant number of A6 postcards which have the wrong title on the reverse. Edinburgh Castle postcards came with the title 'Victoria Street' on the reverse and vice versa.
 
The cards themselves are perfectly fine, printed on 350gsm silk paper with a matt lamination on the picture side. They would make a perfect mini print or postcard for anyone not fussed about the title being incorrect.
 
I can't reasonably sell these commercially at full price. My idea then, sell them at a discount and give the net proceeds to charity. So for every postcard sold I will donate £1 to charity. Once I've reached a critical mass, maybe £50, I will post to my socials, website and e-mail to let you know where your money has gone to.
 
Owing to the price of the postcard I'll post 2nd class within the UK and economy untracked to the rest of the world.