Thread Name: ISBN Info - Backdoor From: ron at scribblemonger.com (ron at scribblemonger.com) Date: Wed, 22 Apr 2020 12:29:32 -0400 Doing a search for ML titles in print during 1975 will give a good listing of classical period titles that likely had an ISBN on the jacket. It is not complete, as some early titles noted with ISBN do not have dates beyond 1970. Also, in the database many titles with a 1975 end dates do not have the ISBN flag set. I think the 1975 end dates may have come from being listed in a 1975 catalog. So it is possible that something in that catalog could have never had a jacket printed with an ISBN. There are 111 regular titles and 53 giants with that end date. There are around 60 titles in the database with the ISBN flag set. ron ------------------------------------- From: ron at scribblemonger.com (ron at scribblemonger.com) Date: Wed, 22 Apr 2020 12:37:18 -0400 One other way to determine which titles had an ISBN is to look at the jacket subtype. For jackets l, n, and o the jackets with ISBN are: l4, l5 n3, n4, n5 o3, o4, o5 I don't think we've seen an m style jacket with ISBN, yet. ron ------------------------------------- From: willthemad at aol.com (Bill Hornick) Date: Wed, 22 Apr 2020 19:22:12 +0000 (UTC) Ron,The content of your three emails is both interesting and useful.I'm getting frustrated over not being able to find the last #15 I am missing (The Possessed) in collectible condition.Also ML listings on eBay seem to be becoming less and less reliable along with the packing quality? I always ask for a protective cardboard wrap but rarely get it.The weather in upstate NY has been absolutely rotten: snow every second day, below-freezing temperatures, and wind, wind, wind (right now at 35 mph). Bill -------------------------------------