I'm pretty sure it's just coincidence. There's no way the two can really be related being on different denominations and different years.
I see what look like hits on the edge of the quarter that pushed metal inward so,
PMD.
The dime is different. Because of the misaligned obverse strike, I think it's a possibility to have a
Rim Fin that folded over. Like I said, a rim
Cud is also a possibility.
Take a look at the dime's edge in that area to check for any hits/dings that may have affected the rim/face.
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