Large German handled vase - Ü-Keramik

Hi All.  Hope someone can help.  Can anyone id the maker of this large German vase found in the Nort West of England?  Despaite multiple searches on the web I've not been able to find anything similar.  It measures 45 cm tall x approx 27 cm in diameter at the widest part.  Marked clearly on the base 1811/45 but unfortunately nothing else.  If anyone can help it would be much appreciated.  Thanks

Ü-Keramik :-)

Many thanks - much appreciated

you are welcome :-)

regards
Micha