IBM 3270 Operator's Manual page 56

Numeric Key
Upper Half of Numeric Key
~
} See Note
logical OR, vertical bar
I
exclamation point
2
@ at sign
3
~
number sign
--r
4 $
dollar sign
5
%
percent sign
~
} See Note
logical NOT sign
A
circumflex, caret
7
& ampersand
8
asterisk
9
left parenthesis
0
right parenthesis
Note: The exclamation point and circumflex (caret) are
not illustrated, but are present on the 3278 ASCII
Typewriter keyboard in place of the logical OR
(vertical bar) and IOQical NOT sign.
Figure 3-11. Some symbols are located on numeric keys.
Chapter 3. Keyboards 3-11