I believe this lovely piece is a Van Briggle pre-1940 Ming Blue Triangle bulbous Flower Vase. Need more photos?.
Vintage Van Briggle Blue Philodendron Vase Col Spgs
Van Briggle Pottery Flower Vase Turquoise Blue Signed Origional Colorado Springs
Van Briggle ming blue tulip form candlestick. Finished by "D."
Vintage Van Briggle Double Tulip Candlestick Holder Blue Turquoise Art Pottery
Van Briggle Pottery Navy Blue Oval Fluted Tulip Planter Bowl With Glaze Accent
Van Briggle Pottery Pedestal Bowl Turquoise Blue Signed Origional
