Monroe Doctrine 1923-S Centennial Half Dollar Just $15.00. The obverse features busts labeled MONROE and ADAMS which represent President James Monroe and his Secretary of State, (later also President), John Quincy Adams. Their names are joined by two links of chain. This refers to their unity in the Monroe Doctrine; a doctrine developed by Quincy Adams, but proclaimed by Monroe in his Presidential message of December 2, 1823. The S below the date is the San Francisco mintmark the entire mintage was struck there. What appears on reverse to represent the continents of North and South America proves on closer examination to depict two female figures. Ms. North America holds some kind of branch, (too vague to be identified as to species), in her left hand while her right hand offers a twig to her contortionist sister, Ms. South America, who holds a cornucopia. Ms. South America sits with her left elbow resting halfway up her right thigh, her left forearm resting along the thigh and rotating to the left, while her upper right arm is extended well behind her back to accommodate the cornucopia. Centennial dates flank a scroll on which rests a quill pen, its nib pointing north, probably alluding to the Doctrine manuscripts and to the legend MONROE DOCTRINE CENTENNIAL. Faint lines in the field represent ocean currents. The whole composition has a very Art Deco feeling, though its lettering is of older style and suggests only a little of the flowing look of Art Nouveau. At lower right is a circular monogram intended for CB Chestier Beach, the designer and modeler. The words LOS ANGELES refer to where the celebration was to take place. These coins are a great symbol of American history! These coins are not an official government issue, but are a privately minted commemorative issue that is clad in 99.9% pure premium silver! These coins are high quality collectables. These coins make a great gift or addition to your collection! Each coin comes in a sealed Mylar Coin flip to protect it. Photos show front and back views. These stunningly beautiful coins are just $15.00 each!