WWII German Cancel Examples.

Nazi German WWII cancel examples while I was digging through some new stuff and though perhaps someone may be interested in them?

I found these very interesting and am quite curious if anyone collects these things? I can tell that they was actually struck because you can feel the indentation left by the cancellation device itself. There are these cards and an a cover with what expect to be just a mock-up to show their usage.





Cover Obverse:


Cover Reverse:




I also found a small pile of American ones too; just regular postmarks (corks, duplex's and different dials/C.D.S.'s)