A Polish Parcel-gilt Silver Hanukah Lamp, Jan Pogorzelski, Warsaw, Circa 1900

the cartouche-form backplate applied with a menorah flanked by columns below a crown with lion supporters, the fonts supported on spread-winged eagles and backed by palm trees supported by lions and a row of raised birds and animals, with detachable pitcher-form servant light and and sconce, marked on backplate Pogorzelski and 84

The company of Jan Pogorzelski was active in Warsaw from before 1851 to around 1910.  A menorah-form lamp by Pogorzelski is in the Jewish Museum, New York (Susan L. Braunstien, Five Centuries of Hanukkah Lamps from the Jewish Musuem, no. 64, pp. 142-43) and others are in the Muzeum Narodowe w Warszawie.