I have 3, two inch mortar shells , 2 were illumination and the other is , well i don't know. They are marked ,illg. with parachute IFS jan/1945 lot 402 MK2 ,the other sept. 42 . The 3rd has a different body and has written on it 2" mor 1 N.S.Co 10/42 . They have broad arrows stamped on the body's and tails .Any info and value would be appreciated.