A gold and ruby cigarette case, Russia, circa 1912, of rectangular outline in gold samorodok, the

A gold and ruby cigarette case, Russia, circa 1912, of rectangular outline in gold samorodok, the hinged lid set with a cabochon ruby, opening to reveal a plain interior, the lid inscribed with the date 24th December 1912, measuring 9.2 x 6.4 x 1.8cm, Russian assay mark for 56 zolotnik gold, workmaster's mark AB for Abraham Beilin & Son, gross weight 143 grams