You searched for: Holding Location B-WELLS Remove constraint Holding Location: B-WELLS Subject Topical Subject: Soviet Union Remove constraint Subject: Topical Subject: Soviet Union State/Province РСФСР (RSFSR) and Ленинградская область (Leningrad oblast) Remove constraint State/Province: РСФСР (RSFSR) and Ленинградская область (Leningrad oblast)