Von Keler, Theodore M. R.  1877-1927. <br/><br/>
The Mystery of the iron mask / 
Theodore M. R. von Keler. 
 - Girard, Kan. :  Haldeman-Julius Co.,  c1923. 
 - 64 p. ;  13 cm. 
 - Ten cent pocket series ;  no. 34 .
<br/><br/> Pages 61-64 contain advertising matter.  Advertised 4 August 1923, Haldeman-Julius Weekly, p. 1.  Later printings issued in Little blue book series wrappers; printings after 1945 lack advertising matter. 
<br/><br/><label>LCCN: </label>ca 24000220  
<br/><br/><label>Subjects--Personal Names: </label><br/>Mattioli, Ercole Antonio, conte,  1640-1703. 
<br/><br/><label>LC Class. No.: </label>DC130.M25  / V6