Ronnie & Gary, the Koesters vs W575-1 debate is very complicated but it can be taken on a case by case basis depending on the subject. According to my research the McGraw card is easily identified as a Koesters if it is the "Standing pose" (not the later portrait) with the position on bottom being "Mgr." as opposed to "Manager" on front. The change of designation was done for the Koesters promotion...thus, with the McGraw as long as it is the standing pose and has "Mgr." on front it is a Koesters...
Here is my copy...
Hope this helps,
-Rhett