Probably from ak-ansichtskarten.de/ak/90-old-postcard/23369-other-Crown-prince-Wilhelm-Family/4289367-AK-Gattin-von-Kronprinz-Wilhelm-von-Preussen-Prinzessin-Cecilie-mit-ihrer-Tochter-Prinzessin-Cecilie; a small number of larger spots were removed with Photoshop and the monocolor tint was removed and the image enlarged to 12.89 cm high at 118.11 pixels/cm.