A late 19th century Art Nouveau Fritz Heckert iridescent glass vase in pewter mount, the wavy and mottle glass in 'Changeant' decor, supported in a pewter Art Nouveau mount by Van Hauten. Maker's marks to base, height 17 cm. Note: Van Houten provided pewter mounts for both Loetz and Kralik after 1890. Hair crack to side.