{"slug":"nina-osipovna-kogan","artist_id":"cb9b91a8-1216-47f9-bf50-c68cbf70ee89","canonical_slug":"nina-osipovna-kogan","name":"Nina Osipovna Kogan","built_at":"2026-11-02","categories":[{"bucket":"Other","lots_n":2,"sold_n":2,"median_price_usd_minor":140462,"record_price_usd_minor":167580,"record_basis":"unverified","priced_lots_hammer_only":0,"priced_lots_unverified":1,"sell_through_pct":null,"last_sale_date":"2026-10-17","first_sale_year":2025},{"bucket":"Works on Paper","lots_n":8,"sold_n":7,"median_price_usd_minor":265333,"record_price_usd_minor":2638940,"record_basis":"hammer","priced_lots_hammer_only":6,"priced_lots_unverified":0,"sell_through_pct":87.5,"last_sale_date":"2025-10-24","first_sale_year":2004}],"sizes":[{"bucket":"Works on Paper","size_bucket":"small","lots_n":6,"sold_n":5,"median_price_usd_minor":171476,"p25_price_usd_minor":171476,"p75_price_usd_minor":809894,"record_price_usd_minor":2638940,"record_basis":"hammer","priced_lots_hammer_only":4,"priced_lots_unverified":0,"last_sale_date":"2025-10-24"}],"notable":[{"bucket":"Works on Paper","year":"2004","total_price_usd":2638940,"priced_basis":"hammer"},{"bucket":"Works on Paper","year":"2008","total_price_usd":809894,"priced_basis":"hammer"}],"last_sold":{"year":"2025","total_price_usd":265333,"priced_basis":"hammer"},"upcoming_count":0,"content_modified":"2026-10-31","value_block_hash":"04075c185b874273e2e57b38daecadaf07c18e5a"}