KnifeDB Academy offers instructional videos covering everything there is to know about Case XX pocket knives. You will also find videos that will help you get the most out of KnifeDB.
KnifeDB provides information on thousands of Case XX pocket knives for collectors. From the early pocket knife eras that were tang stamped "Case Brothers", "W. R. Case and Sons", or "Case Tested" to the modern "CASE XX" and "Case XX USA" eras, the Collectors' Guide attempts to provide as much data as possible on every Case brand folding knife available, including knives made after 1969.