Schwartz, A W <br/><br/>
Additional philatelic errors of medical interest.  [electronic resource] 

 -  Scalpel & tongs : American journal of medical philately   
 - 91-3 p.  digital 
<br/><br/> Publication Type: Historical Article; Journal Article 
<br/><br/><label>ISSN: </label>0048-9255 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History, 19th Century<br/>History, 20th Century<br/>Philately--history