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this book. This book covers a tremendous amount of marks. Its the best reference book of its kind.
There is lots of good information on a large selection of manufactures. You won't be dissapointed, I'm not.
Now that I have this book, I use it every week. It's an absolutely invaluable guide to all those crazy, confusing pottery marks. However, I still have a couple I simply cannot identify, even with the book. I guess no one is perfect...
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