Knoll & Pregizer Art Deco Paste Sterling German Brooch. This is a beautiful original German made art deco brooch signed by Knoll & Pregizer. It is marked "935, KP in lozenge, Sterling, Germany." It is paste with an open back design. It has a locking C-clasp. Beautifully made and all stones are intact with one baguette paste slightly chipped. Measures approximately 1 7/8 inches wide by 1 1/2 inches tall. Weight is 15.5 grams. Knoll and Pregizer were in business between 1887 and 1975 and produced exquisite jewelry that is highly collectible today.