By the end of 1990s the collection owned by Galina Osetsimskaya included over 300 works by more than 60 artists, including Valery Aizenberg, Nikita Alexeev, Sergei Anufriev, Alexey Beliaev-Gintovt, Anatoly Brusilovsky, Alexander Vinogradov, Dmitri Vrubel, Andrey Grositsky, Georgy Guryanov, Dmitry Gutov, Vladimir Dubossarsky, Francisco Infante-Arana, Ilya Kabakov, Georgy Kiesewalter, Oleg Kulik, Rostislav Lebedev, Yuri Leiderman, Igor Makarevich, Bogdan Mamonov, Andrei Monastyrski, Arkady Nasonov, Vladimir Nemukhin, Timur Novikov, Anatoly Osmolovsky, Georgy Ostretsov, Pavel Pepperstein, Viktor Pivovarov, Anatoly Slepyshev, Olga Tobreluts, Alexey Tyapushkin, Aristarkh Chernyshev, Olga Chernysheva, Ivan Tschuikov, et al. The art critics rated the collection as museum-quality for its volume and comprehensiveness.[6][7] It was first presented at the Art Manege fair in Moscow in 1999. After Galina Osetsimskaya died in 2000, her husband Igor Osetsimsky took the duties to expand and exhibit the collection. In 2018 he provided Moscow-based Garage Museum of Contemporary Art the archive of his wife's notes and recordings for research, digitalization and conservation in Garage's Russian Art Archive Network.[8]