Thanks for Sharing Terry, I've only seen this on the 1967 too. Interesting to note it is on a previous year, even though the reverse dies were different.
Try tapping the 'hamburger' again, then swiping from right to left, I think the menu is being hidden on the right because of the bad fit for the advert..
I don't think the chances are very high Ian, as far as I know the only known one is sitting in the British museum. There is a picture lurking somewhere I'm sure I've seen it, if I find it I'll post back here for you.
I'm leaning toward a combo of Jerry's and Ian's thoughts, it has such likeness to the shape of having tape across it while the rest of it has been exposed to something.
Yes that works. One question - does the strip across the reverse match directly to the 2 'squares' on the reverse, so you could follow the outer lines and they meet up?
I don't think there is any example of a lamination flaw with such perfect shapes, but how it was done is the real question.
Haha, yep you need to submit at least one white paper on a coin subject of your choice
Its just an automatic group name for anyone with 200 posts or over, your edit time increases with it.
Strike doubling/mechanical doubling is where the doubling happens during the striking process, like when the coin shifts slightly during a strike or the vibrations cause the die to jolt out of position.
It's different to doubled die strikes/hub doubling which is where the doubling has occurred during the die making process, in case you're wondering.
Don't forget that the difference between grades for this type of year can mean a big chunk of money. But if you're looking for another sale, there's one coming up in March at LCA;
3rd from the bottom
NEF/EF (as graded by them) so a bit better than yours, but it gives you an idea at least.
PM sent RE the 1912h, if you are also interested I have a 1918KN for sale too. You are welcome to make an offer, the BIN is a little high but put down what you'd be happy to pay, you might be surprised.