Vintage Modern Uni D-A sterling brooch pin. Uni D-A is David Andersen's 

granddaughter's company of Norway with Norwegian designer Marianne 

Berg.

This is a pin, designed by Marianne Berg, pin is from 1960's, signed : 

Uni D-A Norway 925 S Sterling Inv. M.B., in original box, weighs 22.6 

grams, measures : 2 1/8" wide x 1 5/8" long, in excellent vintage original 

condition, has some tarnish can be polished to your own taste, i think pin 

was never used.