Exceptional painting of 9 girls dressing in a white-tiled bath house, ca 1920-1950 ?

Kaldenbach family property.

Who can identify the artist of this realist painting?

About 45 cm in width, good condition.

Mr Kaldenbach is available as a lecturer and tour guide.

Research and copyright by Kaldenbach. A full presentation is on view at www.xs4all.nl/~kalden/