What does it say? A stamp on the back of an old picture/painting…?

Hello, my dears, Today I have to ask you for help again… It is about an old picture by HUGO VEIT (1816-1893), more precisely the back and especially a stamp, as can be seen in the first photo. WHAT DOES IT SAY IN THE TWO LINES BELOW "VICTORIA" (with a C)? It is (presumably) not…