Since this is a rifle made by Abraham Henry one wonders how Dickert has been dragged into the picture? Perhaps it is because this rifle has all the features that you will find on work by J. Ferree, J. Dickert, J. Hoake, Albrecht (Albright), P. Gonter and many other early Lancaster makers. It has all the markers.
This rifle has a high grip rail, four RR pipes, thick butt, high relief carving especially at the tang (which disappeared relatively early in Lancaster, by about 1810, in favor of none, or incised designs), long tapered barrel, daisy patchbox finial, and a wonderful handmade lock, the best I have ever seen. This is only the second Lancaster Henry I have seen and it is the best. The other one had no tang carving, and the carving was not as fine.
This rifle typifies the best of the early Lancaster work and this is the common original style which after 1800 changed somewhat. No one is sure who introduced the Lancaster look; it could have been a very early maker like John Graeff, or a group of such men, including the aforementioned group.
Of great interest here is the used of nontraditional maple for stocking. This gun was created with a high artful purpose in mind, for a well to do client, it appears.
Dick