Vintage Black & White Murano Swirl Glass Table Lamp by Renato Toso for Leucos 1970s

This is a unique Italian Murano glass table lamp. Black and white hand blown glass features a swirl spiral pattern around the edge of both the glass shade and base. The area with the black glass swirl is clear while the remainder of the shade and body are white translucent. It features a black enamelled metal cap at top of glass dome shade. In-line three-way onoff switch. The base and shade are illuminated at the same time. Takes four base light bulbs under the glass shade and one base light bulb within trumpet-shaped base. This piece is attributed to Roberto Pamio and Renato Toso for Leucos but is unmarked.