HOLZER, DAVID <br/><br/>
TOP SECRET SPY LETTER WRITING KIT 

 - FIRST EDITION 
 - ENGLAND  2004 TOP THAT! PUBLISHING PLD.  2004 
 - 24P. 
<br/><br/> NO ISBN GIVEN. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LETTER WRITING<br/>SECRET CODES<br/>CRYPTOLOGY<br/>CYRILLIC ALPHABET<br/>CEASAR CODE<br/>GRID CIPHER<br/>PIGPEN CODE<br/>POLYBIUS CODE<br/>MORSE CODE<br/>UNDERCOVER TECHNIQUES
<br/><br/><label>Dewey Class. No.: </label>793.73/HOL