Are there any books specifically on Key-Date coins?

I feel like there could be a lot of potential for a book on key-dates, semi-keys and classical rarities in specific grades. This is an area I've just recently been exploring and with posts by specific forum members it's become apparent that a LOT of series have coins that aren't keys but they...are? That is, they're not low-mintage but hard to find, at least in 'worthy' condition.
Plus, I would hate to finish this book and find out that it's already been done.
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-D
Plus, I would hate to finish this book and find out that it's already been done.

-D
"It is the mark of an educated mind to be able to entertain a thought without accepting it."
-Aristotle
Dum loquimur fugerit invida aetas. Carpe diem quam minimum credula postero.
-Horace
-Aristotle
Dum loquimur fugerit invida aetas. Carpe diem quam minimum credula postero.
-Horace
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Comments
A Key/Semi-Key Book would be very different from the 100 Greatest Coins. Sure there is some overlap, duh...but it would be a very very different book and it would address each and every series. At least that is the way I had it planned....and I would not go past 1964 with my book.
Looking for Top Pop Mercury Dime Varieties & High Grade Mercury Dime Toners.
-Aristotle
Dum loquimur fugerit invida aetas. Carpe diem quam minimum credula postero.
-Horace
Or, are you thinking about something completely different?
Check out the Southern Gold Society
I think enough is out there, one must just look for it. One of the best ways to study a key date coin is
via Heritage Auction Archives with nice photos you can enlarge.
Best of luck, D.
Jim
When a man who is honestly mistaken hears the truth, he will either quit being mistaken or cease to be honest....Abraham Lincoln
Patriotism is supporting your country all the time, and your government when it deserves it.....Mark Twain