I should just have put the printable character chart right here in the post for people to compare:

     0 1 2 3 4 5 6 7 8 9 A B C D E F
  ..
  2    ! " # $ % & ' ( ) * + , - . / 
  3  0 1 2 3 4 5 6 7 8 9 : ; < = > ? 
  4  @ A B C D E F G H I J K L M N O 
  5  P Q R S T U V W X Y Z [ \ ] ^ _ 
  6  ` a b c d e f g h i j k l m n o 
  7  p q r s t u v w x y z { | } ~

Hex 21 through 29 were the shift characters on the numbers on the old Apple ][ keyboard.