The short answer is .
While not the 26th edition, NumisMaster is the official online database of Krause Publications. It contains the updated data from the 26th edition plus 10 more years of revisions. For $9.99/month, you get: Standard Catalog Of World Paper Money 26th Edition Pdf
Happy collecting, and always verify your watermarks. The short answer is
: Lists different signature combinations which can significantly impact a note's rarity. you get: Happy collecting
A: Use the catalog to identify rare varieties (like replacement notes or printer errors), then sell on eBay or to a specialist dealer like Lyn Knight Currency Auctions.
The Standard Catalog of World Paper Money, 26th Edition is a masterpiece of numismatic reference. For notes issued between 1961 and 2012, it is incredibly reliable.