I once owned LeFever #10332. If am am correct, the opening lever on this E is better described as a side-pivot opener as opposed to a "clover leaf"; but this device was replaced soon afterwards with a standard pivot opener. Examples in this serial number range seem to represent a transition period for LeFever guns, and a wide variety of features can be found between examples within this serial number range that will not be seen in later guns. This E Grade most likely has cocking rods as opposed to cocking hooks; and yes, the ball joint on these early models is adjusted by a spanner wrench as opposed to a screwdriver used with later slotted ball joint guns. My gun had a horn tip inlay, a horn grip cap, and a horn buttplate; but I honestly can't recall whether the firing pins were bushed or not. Again, LeFever guns within and around the 10xxx serial number range can be found with all sorts of features, which I believe had a lot to do with the fact that frames were not used consecutively. For instance, you will occassionally find an example with a thumb(push-type) opener in this number range as opposed to a top lever opener; and I've even seen one very early example with a large cocking hook and in-frame ejectors. This is the kind of stuff that makes Lefevers so much fun and so interesting to collect.