DUCK 



STAMP 



DATA 



Background and Technical Information for Collectors 



By Edna N. Sater 

 Office of Information 



Washington 

 1961 



United States Department of the Interior, Stewart L. Udali, Secretary 



Fish and Wildlife Service, Clarence F. Pautzke, Commissioner 

 Bureau of Sport Fisheries and Wildlife, Daniel H. Janzen, Director 



