more Jägerbüchsen
https://auctionet.com/de/3717227-slinglock-bouncer-fur-die-jagd-ungefahr-1850-60

E. Möckel Leipzig,small for the time 9 mm caliber, imho, the "Guss Stahl" mark would put it into the late 1860s, early 1870s

https://auctionet.com/de/3717260-ein-aufholtursteher-fur-die-jagd-um-1840
(Johan) Neuritter In Saltz (Burg)