1971-D 50C, trying to learn the difference between misaligned die, partial collar, and broad strike. I guessing misaligned die? Also I found a few coins in 1975 mint sets with these similar marks. Most of them are found on the quarters and dimes. These two examples I removed from the mint package to get a better picture. Any ideas?
I believe I posted similar coins about a year or so ago here and the consensus was that it was damage from the crimping / heat sealing machine for the mint cello. So, not really a Mint error, but damage that happened at the Mint.
If the Quarter were Broadstruck there would be no reeding on the edge. Show the edge to determine if it's partial collar. Especially the area near the date. The rest of the coins are damaged. Not errors that occurred during the minting process. As stated before it was due to the sealing of the Mint packaging.
The collar is a little misaligned on the half and on the rest I can make as many of those as you want.
I see a slightly misaligned die strike on the half but it’s so small it’s nothing of interest. The others are damaged by the heat sealing machine as mentioned. You should have left those in the mint wrap.