{"item_id":20029,"name":"Old demon mask","url":"https://runescapetrader.com/item/20029","unit":"GP","buy_limit":4,"prices":{"instant_buy":{"gp":22998,"observed_at":"2026-09-11T13:40:49Z","age_seconds":29371,"status":"stale"},"instant_sell":{"gp":22930,"observed_at":"2026-09-11T21:25:34Z","age_seconds":1486,"status":"stale"}},"market_data_updated_at":"2026-09-11T21:50:11Z","source":{"name":"OSRS Wiki real-time prices","url":"https://oldschool.runescape.wiki/w/RuneScape:Real-time_Prices"}}