I have spent a rainy afternoon thoroughly enjoying this again. I was puzzled by the so called goof on this website, which refers to a postcard having two stamps and then later seen to have one stamp. If you look closely and don't blink , you will notice that there are two postcards. The first one (with two stamps) says "All the best from Gravesend. Missing you a lot. Yours ever Bert". The second one (with one stamp" ) is the one Miss Marple reads out, which says "Lots of nice looking girls here but not one that's a patch on you. Be seeing you soon. Don't forget our date. And then it's happy happy ever after. Love Bert." Or is this "goof" included just as a test to see how much we are paying attention ? !