It's not a factory set, just a collection of individual knives put together. The most valuable knife there would be the double blade 110. One sold on eBay in January for $106.75, it was in the box with sheath and paperwork. That strikes me as a bit low but it was an actual sale. The pocket knives all appear for sale on ebay with some regularity. I consider them all be $30 to $40 knives, closer to $30 without the boxes. You don't show enough of the 110's on either side so tough to say what they are. Giving them an arbitrary value of $50 each plus $180 for the pocket knives and $107 for the double blade gets you to $387. Add something for the case and you've got your $400. HTH