Vintage Soviet Era AK7, 875 gilt silver , nielo enameled flowers tea spoons (6)

They appear to be antique or vintage russian silver niello spoons, with is a technique where a black mixture of silver, copper, lead and sulphur is inlaid into engraved designs on silver, creating a striking contrast, so the flowers on the spoon are typical in this type of work. They are hallmarked on their back, all of them with AK7, the ASSAYER mark, followed by 875, Russian, which is 87.5 pure silver at 87.5% They are 5.5 inches long and all in wonderful condition.