Hoping this will be helpful, for wrong stock planchets.
As posted above, there have been cases where the wrong
stock was used to punch planchets.
As listed in the
RedBook, there are 1970D
Washington quarters minted on the wrong stock.
This happened when, one section of the mint
was working on quarters, but the section preparing the
stock thought they were working on dimes. The one section
used a roll of dime stock, cut the bar stock and passed
it to the next section. That section punched quarter
size planchets. This mistake caused a several thousands
of thin/light
Washington quarters.
When I was younger, many of these were found when vending
machines would reject them.
I agree with others here, that there is a good chance this
Ike was made from the wrong stock.
Here are some pics of one of my quarters.
Regular quarter

1970D wrong stock



Of course a quarter on dime stock, the coin will not be
near a full strike.
For a Ike, that might be on half dollar or quarter stock
the strike would be closer to full strike.