The IDF came under some derision from skeptics who said that their publication of weapons found on the Mavi Marmara ship were of equipment that one would normally find on a ship, such as ordinary kitchen knives.
The two knives that Reuters originally cropped out do not look like any of the knives in this picture, though.
This is not a kitchen knife nor a utility pocket knife - it is a combat knife, somewhat similar in intended function (sharp point, serrated edge that only reaches to the beginning of the curved part) to this one:
Since we see evidence that combat knives were on the ship, and that they were not apparently found by the Israelis, it corroborates the testimony that the IHH thugs threw their own weapons overboard (and not just IDF weapons, as most of those on the ship have been claiming.)