I'm sure that a lot of the books I want for my collection are in the capable hands of PBS members, but since they're all from a few years before ISBNs arrived, I'm equally sure that many people don't want to go through the pain of typing descriptions while not knowing how long the book will sit there. I know when I first joined, I posted a bunch of non-ISBNs (just look at all the "No Cover Availables" on my bookshelf!), but I don't anymore.
Anyway, I'm trying to get one copy of each paperback published by Ace in their D, F, and G series back in the 50s and 60s. (Especially F series, because they have the coolest cover art.) These are easy to identify, because they all have the letter followed by a 1, 2, or 3-digit number on the cover and/or spine. Ace D-1, Ace F-213, Ace G-400, etc.
If you have any I need, you can post them with just the book number as a description, knowing that they'll be snatched up right away. But wait -- I'll sweeten the deal, of course. 3/2 on any paperbacks on my shelf. And if you have a book on your wish list that you are first in line for and I have (quite possible; I'm not a dealer but I own over 7,000 books), I'll post it for you even if it's one I want to keep.
For every nine you have, I'll do the above PLUS fill up the rest of a medium flat-rate box with my choice of books in the genre and/or publisher of your choice.
I do find these Ace books here all the time. Problem is, since most were reprinted in later editions, I'm constantly having to send along requestor conditions, and about 40% of the time the trade has to be cancelled, even though I don't really care about condition like most collectors.
So which ones do I need? I'm trying to figure out the best way to let you know, since we're talking almost 1400 titles here and I have maybe 250 of them. I've got all the titles in an Excel database, but no file attachments in the forum, huh.
Oh well. PM me if you have any at all and we'll work out the details, I suppose, unless anyone has any ideas of better ways. The Ace books span a number of genres, with science fiction, westerns, mysteries, and nurse stories being the most common. Thanks in advance!