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Introduction    Dial types    Hours (types of)    Time (types of)    Illustration
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APPENDIX XI. Ordnance survey grid squares

Figure 12. OS Grid Letters 

Pages: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Introduction    Dial types    Hours (types of)    Time (types of)    Illustration
Symbols    Equations    Biographies    Chronology    Sources    Appendices