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This is the catalog I reviewed back in February, 2007, in my article For Further Study as a good variety catalog on Tang dynasty Kai Yuan Tong Bao. It is by a private collector in mainland China.
In my original article I had a link to the supplier, which is no longer valid, but this morning I found another coin dealer in China (at eBay) who has a limited number for sale, and so I am bringing it to your attention. The copies currently for sale seem to be a reprint, as the cover looks slightly different than the one I have, pictured here.
This dealer, by the way, sells only genuine Chinese cash and so is reliable. I have dealt with him before and have never found any fakes for sale in his auctions.
Click HERE to view the listing for the variety catalog.
This is a time-limited link, of course.