{"item_id":12428,"name":"Penguin mask","url":"https://runescapetrader.com/item/12428","unit":"GP","buy_limit":4,"prices":{"instant_buy":{"gp":28112,"observed_at":"2026-09-11T16:49:21Z","age_seconds":20749,"status":"stale"},"instant_sell":{"gp":22222,"observed_at":"2026-09-11T22:20:34Z","age_seconds":876,"status":"fresh"}},"market_data_updated_at":"2026-09-11T22:34:11Z","source":{"name":"OSRS Wiki real-time prices","url":"https://oldschool.runescape.wiki/w/RuneScape:Real-time_Prices"}}