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 Ленинградская область (Leningrad oblast) and РСФСР (RSFSR) Remove constraint State/Province: Ленинградская область (Leningrad oblast) and РСФСР (RSFSR)