That actually looks identical to a jammer ss1 im holding in my hand right now, one of the first ss1's that came out. I thought it looked like it so i went and got the clutch to double check and sure enough it does look identical except mine is a newer one than yours and has SS1 engraved in it between the springs. Yours looks to have a Noram Cheetah or Horstman greased lightning basket on it. Thats definately not an x5, as i have one of those as well, and its not a reaper either because its too old to be a reaper. Its either a jammer or its a greased lightning, the main parts will interchange between those clutches anyways. Send that pic you have to Martinbuilt Clutches or Jammer Clutches on here, one of them could tell you for sure. Im almost positive its a jammer though. I have a noram cheetah basket on my SS1, and that same basket will also fit a skull and bones clutch i have.