[Mills]

I am a fan of early hammerless Parkers and one thing I have observed in my searches is no fishtail toplevers on the really early hammerless guns (say, first two years). I was wondering if fishtails were not used on hammerless Parkers at first, when they were added and why, if that is the case. I have a fishtail in the 71xxx range. Does anybody have one earlier? Does anybody have one in the first two years?