Im going to chime in here, The lever is pretty thin on the left side of that bump section if in fact that bump is part of the lever, Im not going to reproduce that feature because I think that some people will break the lever if its made like that. It is possible that the original lever broke and they grafted a second lever on to the nub of the first lever producing that bump. The levers that I am making will have that same curve and look VERY CLOSE to the one in the black and white photo with the exception of the "bump" on the bottom. I will post a pic of a lever after one comes out of the cnc machine it shouldn't be too much longer.