Unusual wall sconce in fine crystal glass

Length 47 cm. Diameter 37 cm. Height 42 cm. Super nice wall sconce in the finest crystal glass. The stand is from the end of the 1800s and in finer handmade quality. Each arm is numbered, so it will fit in the correct socket as it will not fit in the others. The arms are also the number to which stage they belong. The frame is number 5, which is large in several places on it, the arms all have the number 5, especially one which has the number 2. However, it fits nicely in the socket. The original wall bracket is included. The glass is beautifully clear in color and its cuts are very clear and sharp in profile. Its cuffs have unfortunately been replaced with others and one light pipe is cracked. Otherwise it is in good condition.