Scenic Cup

This is a porcelain cup made by a Russian maker I am still trying to pin down. Might be Safronow , Nassanow , Wsewoloshski , Poliwanow and maybe even Gardner though I doubt that. But like I said I am not sure yet. It dates to the early 19th century and is very nicely handpainted with a landscape scene in the front, an orange brown trim and a swan or some other type of bird shaped handle. The cup is in good condition with a tight hairline to the right of the handle which doesn't take away from the piece. It is marked with an underglaze greyish mark that reminds me of the shape of an ear with a dot in the center. Also the number 178 in the orangey color. The cup is 2.25 inches tall and 2.75 inches in diameter. Please email me for more information or other pictures.