Lance Hawvermale wrote:In an effort to nail down the exact versions of my many copies of the DMG, I am left with only two that perplex me. Both bear the "DM" cover rather than the "efreet" cover, so they are at least Eighth printing. There is no printing info on the copyright page, which leads me to believe that these hail from 1983 to 1985, after which time the printing details began to appear. Based just on this, I would say that these were both of the Eighth printing. However, there is one discernible difference between the two: One of them sports a barcode on the back with the number 46363 02011. At what time did the barcode begin to appear?I've studied intently the book's research on this site, but I still can't quite nail this one down.
Printing info most likely began to be added to the copyright page around 1985; discoveries of print info lower than 9th will throw our sequence above into chaos. The 9th printing was in August 1987, 10th printing was in 1987, the 11th printing was in April 1988, the 12th printing was in November 1988, the 13th printing was in July 1989, and the 14th printing was in July 1990. The description on the copyright page of the rear-cover artwork was never corrected. (Thanks to Michael Deaton and Gordon Richards for help with this info).
Lance Hawvermale wrote:Hmmm. Still no insight on the barcode/no barcode printing of the DMG?