From eBay.
This is another view of the couple seen in the last image.
Keywords: 1925, Liersch, Princess Eitel-Fritz, Sophie Charlotte von Oldenburg, Prinzessin Eitel Friedrich, Herzogin Sophie Charlotte, Duchess, Princess, Oldenburg family, Hohenzollern family, German, straight coiffure, earrings, floral brim hat, blouse, vee neckline, collar, tie, blouson bodice, long under-sleeves, natural waistline, jacket, lapels, long close over-sleeves, A-line skirt, maxi length close skirt, shoes