You are looking at a third class gold imperial order of St. Stanislas. Marked on the loop with 56 Russian Imperial Gold Standard, and with initials "AK" by Albert Keibel. The Keibel jewelry firm had been the primary supplier of orders for the Russian Imperial Court, and the Kapitul (Chancellery) since 1840-s.
The order of Saint Stanislas was founded on May 7, 1765 by Stanislaus II, the last King of Poland. The order of Saint Stanislas passed through several phases before becoming a Russian Order in 1831, after the Polish rebellion of 1830 had been suppressed by the Russian Army.
The badge of the Order was gold rimmed, dark red enemeled. This order is eight-pointed cross, each point has ball tipped. Between each arm of the cross appears Imperial Russian Eagle. Center medallion is white enemel and portrays in red the monogram of St. Stanislas surrounded by a green gold laurel wreath.
Size: 40 mm. Extraordinary condition. The enamel is completely intact.Ribbon: St. Stanislas, red with white, red border stripes on each side.