1991 50 cent deeper reverse strike?

[autocoupler]

Was tiding up and straightening out the usual mess and noticed a 1991 50 Cent  reverse with what appears to be a much deeper strike and wider rim? There were 42 coins in all, mainly taken from or part of mint bags etc. Six displayed this characteristic. Is this a known oddity of this mintage?

HEAVIER STRIKE


NORMAL STRIKE

[Unicorn]

Well spotted Auto!

Some fine micron wool there.

Did some quick lines and circles on your pics to further show the rim width difference. (All other things aside).

[autocoupler]

eeek.....spiders!! Clever stuff there uni

[Pedro]

Very impressive Uni! (and of course Auto for bringing it up in the first place).

Pedro

[Robster]

Cool find, cool detective work.!