U1AO 1988 European Russia
Operator: Mikhail Kolcov: Leningrsd, 1928-33 - eu3CY / RK-198; 1933-41 U1AO, after WWII - UA1GV, after 1987 - U1AO.
See a photo of the station he was in contact with, U1AU!
UY5XE Collection