{"current_listings":[{"buy_url":"https://birkinbagstock.com/go/janefinds-10091440177455","currency":"USD","detail_url":"https://birkinbagstock.com/listing/janefinds-10091440177455","id":"janefinds-10091440177455","merchant":"JaneFinds","price":36500,"title":"Herm\u00e8s Vintage Kelly 20 Sellier Noir Box Calf Gold Hardware"},{"buy_url":"https://birkinbagstock.com/go/janefinds-16137004384559","currency":"USD","detail_url":"https://birkinbagstock.com/listing/janefinds-16137004384559","id":"janefinds-16137004384559","merchant":"JaneFinds","price":38500,"title":"Herm\u00e8s Kelly 20 Mini II Sellier Noir Box Calf Palladium Hardware"},{"buy_url":"https://birkinbagstock.com/go/bagista-SOR7188","currency":"USD","detail_url":"https://birkinbagstock.com/listing/bagista-SOR7188","id":"bagista-SOR7188","merchant":"Bagista","price":22999,"title":"Herm\u00e8s Vintage Kelly 20 - Black Box Calf | Gold Hardware"},{"buy_url":"https://birkinbagstock.com/go/bagista-BO7498","currency":"USD","detail_url":"https://birkinbagstock.com/listing/bagista-BO7498","id":"bagista-BO7498","merchant":"Bagista","price":19999,"title":"Herm\u00e8s Mini Kelly 20cm - Black Box Calf | Gold Hardware"}],"data_url":"https://birkinbagstock.com/data/price-history/kelly-20-box-calf.json","filters":{"leather":"Box Calf","size":20,"sort":"newest","style":"kelly"},"generated_at":"2026-09-04T06:50:07.981239+00:00","history":{"change":0,"change_label":"$0","change_pct":0.0,"current_listings":4,"data_url":"/data/price-history/kelly-20-box-calf.json","direction":"flat","events":[],"first_date":"2026-09-04","first_median_price":29750,"first_median_price_label":"$29,750","history":[{"date":"2026-09-04","day":"20260904","max_price":38500,"max_price_label":"$38,500","median_price":29750,"median_price_label":"$29,750","min_price":19999,"min_price_label":"$19,999","sample":4}],"history_url":"/price-history/kelly-20-box-calf","label":"Birkin 20 Box Calf","last_date":"2026-09-04","last_median_price":29750,"last_median_price_label":"$29,750","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":4,"slug":"kelly-20-box-calf","status":"one_point","summary":"Birkin 20 Box Calf median first captured at $29,750 on 2026-09-04."},"license":"Public citation dataset. Attribute BirkinBagStock.com and verify merchant prices before purchase.","slug":"kelly-20-box-calf","source":"BirkinBagStock.com","title":"Kelly 20 Box Calf \u2014 Live Inventory Across Verified Resellers","url":"https://birkinbagstock.com/price-history/kelly-20-box-calf"}