Good afternoon all I found a coin earlier that has been slightly bent but shows no real damage or indication on weather it was done pre/post mint. Maybe someone bent it with their fingers as a party trick but not knowing I thought I would post the best pictures I could take of it to get more perspective. Bent dime by Darren Edwards posted Sep 4, 2021 at 3:59 PM Bent dime by Darren Edwards posted Sep 4, 2021 at 3:59 PM Bent dime by Darren Edwards posted Sep 4, 2021 at 3:59 PM Bent dime by Darren Edwards posted Sep 4, 2021 at 3:59 PM Bent dime by Darren Edwards posted Sep 4, 2021 at 3:59 PM Bent dime by Darren Edwards posted Sep 4, 2021 at 3:59 PM Bent dime by Darren Edwards posted Sep 4, 2021 at 3:59 PM
It's flat when it leaves the dies because the dies are flat. Now it could have been the coin at the bottom of the tote and had a bazillion other dimes dumped on top of it, so it's bent when it leaves the mint...
I think your coin has post mint damage due to the mark on the edge in your last photo. And yes, coins can be bent right out of the press. They are usually cupped like a bowl. I think it has something to do with not going through the annealing oven. But most coins can be easily bent in this fashion post mint without leaving marks, so it is a hard thing to determine and there is really no desire for such a coin.
Sure. The feeder, as I recall (I am old) slides back to receive another blank planchet, and at this point, the knee is bent, and this raises the die above the collar. The die stake raises at the same time. Pretty sensitive tolerance and if off a bit, and if the planchet is also an issue, I can see that causing a problem.. I think there is an alarm if more than one planchet gets in the box, But I guess anything can happen. I wouldn't know from photos one way or another. I am more curious about the center concave tire appearance of the edge.
It looks like I will just be keeping this one in my pocket for the odd slight of hand magic trick rather than keeping it in one of my books then lol. Thanks for all the answers guys, it gives me a bit more of an education each time I post something up on here so it’s much appreciated.
Thank you for the reply, yes the edge being that shape is what made me think it could possibly be a bend that happened during the mint process rather than after. I suppose there’s no way of truly telling how it happened so will just keep hold of it for fun rather than thinking there’s any added value to it
Yes a coin can be bent during the minting process, if the coin is struck significantly off-center and the collar springs are stiff so the collar doesn't "give" during the striking of the coin. The result is an off-center coin with a significant bend toward the hammer die.
I have some very useless experience in fabrication coining (as opposed to minting of actual coins) and I was mentally constructing how I would fabricate this anomaly. I could possibly tool a collar that fit into the edging precisely, then apply in a multi-ton smooth vice and at the time align a high tonnage press, and this could cause physical bending if the synchronicity of the collar and the press and the force is not perfect (because the force generated has to be dissipated somewhere/somehow), but I would expect the existing images on the coin to be distorted. But then I ask myself, why go through the trouble and expense, unless it is a highly skilled machinist with a lot of time on his/her hands (yes, there are some excellent female specialty machinists especially in the S4S fabrications), or , a midnight minter at the mint. My mind wanders. I am old.
