Something Amiss? 1972 Panama 1/10 Balboa Proof (Philadelphia)

Well, this is an odd one and in proof to boot. Whatcha think?

 

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Quite interesting. Is there another side or is this both sides?

 

Ah, yes.
Here you go:

 

Thanks for photo.
That is a very cool and rare Flipover Double Struck error coin. And a proof at that.
Numista say a mintage of 13,332 was struck in San Fransico in 1973..
Numista# 1036.

 

Can you show us the slab showing the label?

 

Super cool!