Thanks to Vlad translation (thanks, Vlad !) one can read :
" To Nikolay Sergeevich on the birthday from workers of Soviet RKKPU"...
RKKPU - Районний Комитет Коммунистической Партии Украины. -
District Committee of Communist Prty of Ukraine.
Soviet - is name of the district.
Fed 2 s/n # 3480014.
Soviet - is name of the district.
Fed 2 s/n # 3480014.