QUOTE(gxseries @ Sep 11 2006, 08:21 AM) [snapback]253513[/snapback]
Geez, it sure shows my greatest ignorance on variants. I personally have yet to pick a copy of Julian's works (apologizes in advance - will do eventually). (Yes, at the same time, I should shamed for using Uzdenikov's book as a sole bible

)
R.W. Julian's book is fairly difficult to find in the normal channels (book stores, amazon.com, etc.). Although it is listed on the Amazon web site, I believe it always says "Currently not available". I never saw it up for auction on eBay in the past two years, either. I got mine from
Bob Reis' website ... don't know if he still has any more copies, though. His site is full of unusual stuff, both numismatic and otherwise, and refreshingly unconventional. I recommend paying it a visit sometime!
But since Bob Julian himself looks in here once in a while, maybe he can give us a link or an address?

QUOTE(gxseries @ Sep 11 2006, 08:21 AM) [snapback]253513[/snapback]
Now another question: Which is the rarer variant?

Although Bob Julian mentions the overdates in the preliminary section of his catalogue, he doesn't give them an individual identifying number. However, Krause does (surprise, surprise!) and lists prices for the overdate at about 10%-20% above that of the regular variety.
Of course, there are a total of 13 varieties for 1842-ACh and 4 varieties for 1842-MW listed in the Julian catalogue, and all but about 4 of the ACh varieties are scarce or rare. Krause (and Uzdenikov) just can't keep up there!