Nice Hohner pre Pokerwork button accordion in the keys of C&F. It is in good condition overall and has a rare green finish. My guess is that it was manufactured by Hohner in Germany in the late 1930's or 40's. It has the nice original hand cut wooden grill in a matching green color. The front grill cloth is intact as is the rear. The green embossed case is in good shape and has gilded decorations. The original bellows are reasonably tight but don't particularly look good. I replaced both old string bellows gaskets with new foam gaskets. There is some wear on the bellows tape where it rests on your knee. It has 21 treble buttons and 8 bass buttons.
There is a video of the instrument being played: