2 German Errors

I bought a big lot of German Pfennigs and non-silver one marks the other day and while going through them I found the following two coins.... The 1924 D 10 Pfennig is obviously a minting error but the 1965 F 1 Mark...well.. has me puzzled. At first I thought this was post mint tampering but the more I look at it I start to think it isn't. The nickel coating on one side of the coin is missing. It is also missing on the rim and is present only on the Obverse side. I tried to take some good side shots to show you how perfect the line of transition from Nickel plating to non nickel plating is. If it was striped, someone took their time doing it right... I also posted a picture of what it SHOULD look like...
Die crack on the reverse across the ears of wheat and then rim issues on the obverse... Large crack and looks like it is rolled over on itself.

Nickel plating is on the reverse but missing on the obverse and side

Side view of the coin

Another side view showing the reverse also

And finally... how it SHOULD look
Die crack on the reverse across the ears of wheat and then rim issues on the obverse... Large crack and looks like it is rolled over on itself.

Nickel plating is on the reverse but missing on the obverse and side

Side view of the coin

Another side view showing the reverse also

And finally... how it SHOULD look

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