This pair of Circa 1955 silver plated wall sconces are by Tommi Anton Parzinger (1903–1981). Parzinger was a German furniture designer and painter who was born in Munich, moving to New York in 1932. Tommi started his first company in 1939, by 1951 Parzinger was well on his way and had establish relationships with an assortment of manufacturers, including Willow & Reed (rattan), Lightolier (lighting), Hofstatter (furniture), Dorlyn (brass) and Salterini (wrought iron). In his later years he concentrated on Expressionist painting, no longer working on design.
Parzinger's last showroom, located on East 57th Street, was closed shortly after his death in 1981, his designs are highly sought after now. As far as we know these sconces have not be reproduced yet by other makers, but it would require a physical examination to verify the marking and construction details to confirm it's an original. As far as values at auction goes, currently a matching pair of sconces could sell in the $1000.00-$1600.00 range.