4-COIN SILVER PROOF BOXED PATTERN SET. RAINIER III PRINCE DE MONACO. 10 FRANCS, 20 FRANCS, 50 FRANCS AND 100 FRANCS 1950. For sale a rare Monaco Essais Silver 4-coin Proof Pattern / trial Set 1950 (RAINIER III PRINCE DE MONACO) in fitted box, low Mintage of 500. The set contains 4 Silver Pattern / trial […]