@Niklas Schröer suggested I share this little bit of my world 🙂 I'm a professional stamp dealer and I run a community about collectables. This is one of my favourite error stamps that you might find interesting. Spain, 1930. Time to issue a commemorative stamp honouring Charles Lindbergh, the famous aviator who flew solo across the Atlantic. We've got the aeroplane, we've got the Statue of Liberty, we've got the cat (yes, apparently the cat made the cut), we've got his name in print... But there's one small detail missing. 𝗟𝗶𝗻𝗱𝗯𝗲𝗿𝗴𝗵 𝗵𝗶𝗺𝘀𝗲𝗹𝗳! That rather large empty oval on the left? That's where his portrait should have been. Perhaps the artist forgot what Lindbergh looked like. Perhaps he was still on the plane. Or perhaps someone in the printing department thought, "Nobody will notice." The funny thing is that normal examples have his portrait, so this little beauty is a genuine printing error. Imagine being commemorated on a postage stamp and then being left off your own stamp! At least the cat got included. 😁