Digging into my extensive files once again, I find that I have two old original 8 1/2" x 11" cartoon "roughs" by fellow cartoonists. One is by CEM (Charles E. Martin), who died in 1995. CEM's cartoons and covers appeared extensively in The New Yorker over the years. The other is by Vahan Shirvanian, still very much an active gag cartoonist, whose cartoons have also appeared in The New Yorker.
Both cartoon roughs were OK'd by Argosy magazine. Argosy was a prolific cartoon-user in the post World War II years, and published its last issue in 1978. With offices in Manhattan, Argosy was a regular stop for cartoonists on Wednesday "Look Days". 
The CEM rough is in ink. The Argosy notations on it are: "OK Argosy — line & benday — color overlay". Also, "Extend it .." (no further instructions as to what length to extend it). Below that, "ARGX1304". Martin's name and address are also written in the upper right-hand corner. 
The Shirvanian rough is in pencil. The Argosy notation on it is "OK Argosy line & benday — 2nd color". Shirvanian's name and address are rubber-stamped on the back.
I have no idea what year or even what decade these two roughs date from. My guess would be anywhere between 1950 and 1970. Does anybody out there have any additional information on either of these?
Thought you'd be interested in seeing these little bits of gag cartooning history.