I just got a 1923 peace dollar that has a long bubble in it (that is the best way I can describe it) it also has lots of other raised marks or extra lines in it the date reads exactly like this 19/23 yes it has a forward slash between the 19 and 23 but you can tell the slash had to do with a die problem. I am going to add the best pics I can I will try to figure out how to take better pictures, any ideas would be helpfull. If any of you know about this sort of error please pass along your knowledge. Thanks
Macro function (looks like a flower) on, Coin fills all of screen on camera, flashlight light source. Magnification in front of lense for even close shots. I am interested to see this.
Definitely has a bubble in it, looks like it got exposed to some heat. A little air, a little heat and what do you get? expansion
That is indeed unusual, never seen anything like it. I would suggest you submit that coin to a TPG to have it properly attibuted as to cause.
This is totaly new for me, I would love to see the attribution for it I don't think what you are describing can actually happen.