Modernist letter holder jean goardere envelope shape in shiny pewter 1970

Jean goardere modernist letter holder in the shape of an envelope dating from the 70s. Hand-worked 95% hammered and shiny pewter (signed on the back). Jean goardere was best worker in france and a good gourmand's gold medal, he made handmade objects by hammering from tin sheets. Length 24.5cm. Height 13.5cm. Depth 9cm. Weight 0.900kg. In very good condition, magnificent brassware work. I am selling 2 other desk accessories from jean goardere from the same series in 2 other of my ads (see the last photos).