This is a tray which has a removable top. Inside it is marked Creative Magic Products, Baldwin New York. There is a black cover with a hole in it which is removable. It appear there was to be a stretched ruuberband which could be release by pushing in the pin which could maybe make a ball jump or move placed in the hole (I am just guessing) Does anyone know what this is?

With the top on:

Picture with the stretched rubberband:

Mystery is solved. This is SWISH, which use a goblet and is for an instant silk vanish.

There is a large goblet (plastic cup with a base really) filled with silks and they then instantly vanish. There was another complementary trick where silks would appear in a goblet for a transposition.