Current Russian registration is RA-XXXXK (four arab digits + letter "K". Why "K"? Kiloroubles? I cannot tell.) Printed on a purple watermark A5 paper. Federation of Amateur aviators? Should be "private aviators" but lost in the translation.

Valid for one year, printed on a blue watermark A5 paper

III. The Russian Private License

First, you must have your national license valid. It is renewable every two years pursuant a flight test. A black cover booklet containing your personal information, the types and approved conditions of use: wheather minima, character of flight (navigation, aerobatic, training).