Watch List notes:

Russia, 50 Rubles 1899 - АК - Konshin / Haymov
Россия, 50 рублей 1899 - АК - Коншин / Наумов

Reference: Muradian 1.16.8, Pick 8c
Grade: UNC/AU

More photos and full item description available on auction site here

WORLD PAPER MONEY RUSSIA / RUSLAND