Back label on the HP-41C (the ALPHA Mode Keyboard)
ALPHA 
ON   USER PRGM   ALPHA
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A B C D E
Σ % < >
F G H I J
APPEND   ASTO ARCL BST
  K L M SST
    $ CLA
  N  
O P  
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Q R S T
+ 4 5 6
U V W X
* 1 2 3
Y Z = ?
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0
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AVIEW 
: space , R/S
Made in U.S.A.
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