In looking at the numbering for ZD's GI Joe, I'm confused by the following and haven't found a clear answer.
(1) v1, according to multiple sources, is the 1950 series. This isn't the copyright date, as some are (c) 1950, and some are 1951. Can anyone confirm or refute that this designates the actual date of publication, meaning that v1 was published/distributed in 1950. (This seems unlikely, as I recall that the 6+ month lead dates didn't begin until a few years later, but I'm not certain.)
(2) The numbering appears to go from v1 #14 to #6, which is the actual number of the comic, and not a version. I am guessing that someone at ZD decided that with the second monthly issue (according to the indicia), the comic should be numbered as of its actual number, rather than confirming with the previous version numbering (i.e., v1 # 15 OR v2 #1). v2 #6 is given in Overstreet, but I cannot confirm this anywhere else.
(3) v1 #14 (October 1951) is the first issue to state that it is monthly, and GI Joe 6 (December 1951) also states that the comic is issued monthly. Any guesses/information as to why there is a two month gap on a monthly comic?
I'm assuming that the numbering from then on, including the change of volume numbers to v3 with whole number 19, is consistent with the plan adopted with # 6, including the change back to bimonthly with v2 #18 ("Winter 1952"), making #19 the February-March 1953 issue, and all numbering consistent from then on. But for my own sanity (and for the integrity of my database) I'd like to nail this down!