Sorry its taken so long to get back on this but Ive been out of pocket as I am alot.
John this could be. Please send me a picture of the watertable and ill ad it to the serial number list.
As for but plates that Ive seen. The proper butt plate is a Plate with a doy marked Parry Fire Arms. As for the Wilkes-Barre guns. The early one all had Parry butt plates on them and the later gun had a Wilks-Barre plate just like there hammerless guns had. (whitch is a Parry plate without the Parry markings).
John email the picture to noble@xyz.net