Brush McCoy musical jug. Totally intact and functioning music box, compete with wooden bead on switch. Beautiful cobalt and blue-gray drip with some crystals. This jug did have had a ceramic and cork stopper at one time. 8.5 inches tall.
I will move it (and probably adjust the price). Thanks. It is interesting, the only marked example (marked under the box) I found in my research was with the ink race track fulper mark. Don't remember the site. This onyx glaze seems to *attract* fulper marks :^]