{"current_listings":[{"buy_url":"https://birkinbagstock.com/go/amore-vintage-japan-66825","currency":"USD","detail_url":"https://birkinbagstock.com/listing/amore-vintage-japan-66825","id":"amore-vintage-japan-66825","merchant":"Amore Vintage Japan","price":9420,"title":"Hermes 2002 Black Box Calf Constance 18 Shoulder Bag"},{"buy_url":"https://birkinbagstock.com/go/prive-porter-39741327638594","currency":"USD","detail_url":"https://birkinbagstock.com/listing/prive-porter-39741327638594","id":"prive-porter-39741327638594","merchant":"Priv\u00e9 Porter","price":48000,"title":"Herm\u00e8s 18cm Constance Cloute Black Box Calf Palladium Hardware"},{"buy_url":"https://birkinbagstock.com/go/bagista-SOR7351","currency":"USD","detail_url":"https://birkinbagstock.com/listing/bagista-SOR7351","id":"bagista-SOR7351","merchant":"Bagista","price":18554,"title":"Herm\u00e8s Constance 18 - Black Box Calf | Gold Hardware"}],"data_url":"https://birkinbagstock.com/data/price-history/black-box-calf-constance.json","filters":{"color":"Black","leather":"Box Calf","sort":"newest","style":"constance"},"generated_at":"2026-09-29T12:27:08.649582+00:00","history":{"change":0,"change_label":"$0","change_pct":0.0,"current_listings":3,"data_url":"/data/price-history/black-box-calf-constance.json","direction":"flat","events":[],"first_date":"2026-09-29","first_median_price":18554,"first_median_price_label":"$18,554","history":[{"date":"2026-09-29","day":"20260929","max_price":48000,"max_price_label":"$48,000","median_price":18554,"median_price_label":"$18,554","min_price":9420,"min_price_label":"$9,420","sample":3}],"history_url":"/price-history/black-box-calf-constance","label":"Birkin Black Box Calf","last_date":"2026-09-29","last_median_price":18554,"last_median_price_label":"$18,554","methodology":"Spec history uses daily captured prices for the current visible cohort of live listings. The median series is descriptive asking-price intelligence, not an appraisal or completed-sale index.","observations":1,"sample_listings":3,"slug":"black-box-calf-constance","status":"one_point","summary":"Birkin Black Box Calf median first captured at $18,554 on 2026-09-29."},"license":"Public citation dataset. Attribute BirkinBagStock.com and verify merchant prices before purchase.","slug":"black-box-calf-constance","source":"BirkinBagStock.com","title":"Constance Black Box Calf \u2014 Live Inventory Across Verified Resellers","url":"https://birkinbagstock.com/price-history/black-box-calf-constance"}