Prinz Oskar is not trimmed for gas warfare - gas masks don't work with beards.
From the USA Library of Congress Bain collection; spots removed from background, left edge fixed, and corner of stamp removed in upper right corner of image with Photoshop by gogm.
Ina's dress is subdued in keeping with war time conditions in this card dating from 1915.
Keywords: 1915, Ina von Rupin, von Bassewitz family, Hohenzollern family, Countess, Princess, German, straight coiffure, feathered hat, blouse, high neckline, collar, jacket, lapels, long sleeves, natural waistline, close skirt