pemart1966

It's most likely Morris Gollub.

Picky - this link is not working so I'm not too sure what it says. That being said, I've seen issues 23, 24 and 25 all with the dual pricing - #21 is new to me so thanks for posting. Anyone got a dual priced #22? (I have issue 24 dual priced and if someone could pm me with the insufficiently_thoughtful_person's guide on how to post photos here I could try posting my cover. I can't follow their instructions - seems like you need a website from which to cull photos?? Anyway, I digress). These 3 issues (23, 24 and 25) all have 1 shilling as the alternate price not the 9 pence on the issue 21 (this could be explained by the domestic price increase from 10 to 15 cents). Foreign issues? I don't think so as I've seen issues of this vintage with just the shilling price on them. They might have been PX copies - PX being the stores on foreign military bases but I'm guessing...

The very early 15 cent variants are issues 7 through 12 and are NOT Canadian versions (unlike the later price variants - 20 cent versions of issues in the #70s). From what I've been told these were marketed in the San Francisco area (although I believe that the area of distribution must have been somewhat wider to make printing economically viable) to test the appetite for a price increase. There were other Dell books sold around this time as well that have 15 cent price covers.

You don't need much money for the majority of these books. Most can be had for CHEAP if you're just hunting down readers and this is one of the most under-rated series of all time - great covers, great art and great story telling...