I have a brass King 3B and I was looking for a silver one and I think I found a cheap one for €1150. On the bell it says:
King 2103 USA 3B
Serialnr: 315374
I mean this has got to be a professional silver King 3B right but after they didnt name it Silversonic anymore? Or did they also have beginner bones with those names? It's a bit of a long drive for me but I might do it if it's worth the trouble. I'll try to add an image:
