British Military Authority

Here's a note that I found interesting mostly because I like items that are off the beaten path.
A British Military Authority 1 shilling note.
It appears that all face values were printed in 1943, i.e., WWII.
I believe the "E" is the series indicator.
Maybe worth $5 in this condition.
Never encountered this before:

 

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Here is a similar note from the same period. Even more off of the beaten path...

 

I guess they are the British equivalent of US MPC's.

 

No. They are the equivalent of US yellow seal notes.

 

Ah ha!
The North Africa overprints.
Thanks.