An early 20^th century German 935 standard silver and enamel erotic concealed cigarette case

of rectangular form with curved corners, the plain exterior with double front opening to reveal a scene of two nude females on a rowing boat in a lake. Push-button release to a gilt interior. Marked to interior with 935 and crescent and crown as well, length – 9.4 cm / 3.7 inches, weight – 170 grams / 5.47 ozt. , Pforzheim [c.1915]