Lefaucheux lever extends from the action and lies when action closed along the top of the forend. An example would be found on the lower end Huskies. The Jones underlever extends from the action and is curved around the trigger guard. Both Lefauchex and Jones open the action by moving the lever laterally. Jones is found on guns from the UK. Greener made use of the Jones lever. I find the Jones far more appealing than the Lefaucheux. I'm sure someone more knowledgeable can correct and add to what I've written. Gil
