What is it made of? It’s difficult to tell if it’s metal or pottery. Is it a vessel (container)?
An emblem with similar imagery appears on this flag, however it’s a fantasy flag:
It was created by someone on the ‘Deviantart’ website as what the flag of the (non-existent) Protectorate of the German Central Africa (Flagge des Schutzgebietes Deutsch-Mittelafrika)
might have been in an alternate history scenario for WWI, if Germany had seized more colonies in Africa than was the case and hadn't lost the war.
The creator (a poster named ‘LinumDeactivated’) said that it was “inspired by other German colonial flags and coats of arms”, so he may have found the emblem somewhere in relation to an African state. However, when I did a Google image search for the emblem, nothing came up… but Google offered: “Possible related search: fictional character”.
The term ‘Doutsche Ostrafrika’ could refer to the German East Africa Company (Deutsch-Ostafrikanische Gesellschaft) or the actual colony of German East Africa (Deutsch-Ostafrika) but the company wasn’t formed until 1884. The colony followed on from that when the company has to call in the military to suppress a revolt in what is now Tanzania and then progressively handed full control to the German government from 1891 onwards. If the ‘1811’ on the item posted is actually a date (rather than some kind of serial number) it can’t relate to either the company or the colony.
The company flag featured a stylised representation of the constellation of the Southern Cross, but they also used the arms of a
single lion under a palm tree:
Neither the colony flag nor its arms featured palm tree/lion emblems but it’s possible there may have been unofficial emblems in use since the actual arms (with an eagle) weren’t officially granted to the colony until 1914.