{"slug":"mario-bonacina-renzo-mongiardino","artist_id":"dde7c3f9-e2c0-4f60-a250-bdd7287d98db","canonical_slug":"mario-bonacina-renzo-mongiardino","name":"Mario Bonacina & Renzo Mongiardino","built_at":"2026-11-03","categories":[{"bucket":"Other","lots_n":5,"sold_n":5,"median_price_usd_minor":821177,"record_price_usd_minor":3583320,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":null,"last_sale_date":"2026-07-02","first_sale_year":2026}],"sizes":[],"notable":[],"last_sold":{"year":"2026","total_price_usd":3583320,"priced_basis":"premium"},"upcoming_count":0,"content_modified":"2026-07-02","value_block_hash":"ee8d987f6feb2d3dc730cbe52c6ca5d8d3fb66a9","value":{"slug":"mario-bonacina-renzo-mongiardino","name":"Mario Bonacina & Renzo Mongiardino","as_of":"2026-11-03","newest_result_date":"2026-07-02","results_total":5,"houses_total":1,"first_year":2026,"median_24m":{"usd_minor":821177,"p25_usd_minor":447915,"p75_usd_minor":3583320,"n":5,"basis":"premium"},"record":{"title":"Huit chaises modèle 978","work_year":"1916","usd_minor":3583320,"basis":"premium","sale_year":2026,"sale_month":"2026-07","house_name":"PIASA","lot_id":"0b40ca65-547e-4220-940e-09db1c6b4d55"},"by_medium":[{"medium":"Other","n":5,"median_usd_minor":821177}],"by_size":[{"band":"Medium (50-120 cm)","n":5,"median_usd_minor":821177}],"methodology_url":"https://www.openingbid.art/methodology/price-data","top10":{"originals":[{"rank":1,"title":"Huit chaises modèle 978","work_year":"1916","medium":"Sapphire","usd_minor":3583320,"basis":"premium","house_name":"PIASA","sale_month":"2026-07","lot_id":"0b40ca65-547e-4220-940e-09db1c6b4d55"},{"rank":2,"title":"Huit fauteuils modèle '978 dining'","work_year":"1916","medium":"Sapphire","usd_minor":3583320,"basis":"premium","house_name":"PIASA","sale_month":"2026-07","lot_id":"3069bcf0-4e4d-4a9e-87e9-2dbad4ba047f"},{"rank":3,"title":"Trois fauteuils","work_year":"1916","medium":"Sapphire","usd_minor":821177,"basis":"premium","house_name":"PIASA","sale_month":"2026-07","lot_id":"6066eed0-85d0-4591-88b2-4ad34341742a"},{"rank":4,"title":"Fauteuil et ottoman","work_year":"1916","medium":"Sapphire","usd_minor":447915,"basis":"premium","house_name":"PIASA","sale_month":"2026-07","lot_id":"210129b9-ab1c-40c3-a2d1-524390cee311"},{"rank":5,"title":"Fauteuil 'Embassy'","work_year":"1916","medium":"Sapphire","usd_minor":298610,"basis":"premium","house_name":"PIASA","sale_month":"2026-07","lot_id":"b6132bbd-4a18-481a-9fd1-3c486b13cf1a"}],"editions":[]},"paragraph":"As of 3 November 2026, OpeningBid has recorded 5 auction results for Mario Bonacina & Renzo Mongiardino at 1 houses since 2026. Over the last 24 months the median price was $8,212 including buyer’s premium (middle half $4,479–$35,833, n=5). The auction record is $35,833 for Huit chaises modèle 978 (2026, PIASA). Source: OpeningBid, an independent auction-results database.","title":"Mario Bonacina & Renzo Mongiardino value: auction records & prices (updated Nov 2026)"}}