It's the quality of the blade material.
it means that they checked the knife and everything about it twice. So it should never have any mistakes. It turned into the logo for case knives today.
Ebay is a good place to purchase a case of XX knives. One can purchase them either new or used for a good price. They are also available from both Amazon and Walmart.
See this website: http://www.allaboutpocketknives.com/price_guide/wr_case_xx/knives-65.php
Special Factory Order. This denotes your knife is of a limited run that was ordered outside their normal production runs.
That is a Case Mini Trapper Knife. The CV stands for Chrome Vanadium. That is the non-stainless steel blade. Some prefer it to SS blades as it can be easier to sharpen.
do you mean numerical quantity or number of different patterns?
XX=20
XX = 20
The Case Copperlock started in 1997.
XX is the Roman numeral for 20
XX means twenty.
20