Quote:
	
	
		| 
					Originally Posted by Zach Wheat  Here is the link to David's web site.  He has a few articles on line about photography & judging authenticity, etc.::>http://www.cycleback.com/ 
ZWheat | 
	
 
Yup, with respect to the Yee/Fogel book, David's reference guides were always my first fallback when I started getting into photos over a dozen years ago or so. They are required reading for any photo collector.
I'm not a big fan of the Type Classification system that Yee and Fogel tout in their book, but it's worth whatever it costs to obtain a copy, just for the exhaustive research they put into back stamps and the history of each news organization.