i picked up what appears to be a common 19a11 bakelite 7" electrostat over the weekend.
the back is gone so not sure if it really is a different model.
it has the same chassis though.
but instead of the waffle grille this one is concentric squares.

There are, indeed, two versions of the cabinet. This is the "Chinese Grille" version. It may be a little less common, and more sought after than the checkerboard grille version.

If memory serves, that's a 19A12S......

Prolly worth getting. After all it may have a very good 7JP4. I just think those little guys are cute as they can be. -Sandy G.

i already have it.
it seems to be a oddball in the case being brown rather than black.
it is a 17t chassis.