Inca Whistle Vessel from Peru, ca. 1300 - 1500 AD. An excellent Inca Whistle Vessel from Peru, ca. 1300 - 1500 AD. This fine double-chambered vessel is 8-1/4ï¾ wide and features a beautifully detailed feline mounted atop one of the spouts. In excellent condition, with good mineral deposits and clear tone on the whistle. Ex Avila collection. Value range: $500 - $750.