Antique Imperial Crown China Austria 3 Piece Serving Casserole Sugar Gravy Boat

Imperial China from Austria. I’ve found that it should be late 19th century but I’m not exactly sure of age. This is for 3 serving pieces. The lidded 10” covered casserole, gravy boat with plate- note: the gravy boat when sitting on the plate rocks a bit. I would use the plate for serving and just put the gravy boat on the table. Lastly, a large lidded sugar. I would use for pickles or olives or relish. It’s large enough for other uses. All pieces have heavy gold gold. The sugar has some gold wear, but look at photos. It’s beautiful. No chips or cracks.