Iguminov double ended cufflinks in silver. The Iguminov house in Moscow - exquisitely decorated with polychromatic tiles by a merchant called Iguminov - was covered in snow (when I went to visit and collect a friend's child from the lycee that was housed in the back of the French Embassy). While waiting, I dusted some snow off a window frame and uncovered a bosse that was carved with this pattern. From the Journey to Russia.
Each cufflink barrel measures approximately 14x9mm.