The National Geographic Magazine December 1956 Volume CX #6 is a valuable collector's item for those interested in travel, geography, history, nature, and photography. Published by the National Geographic Society in the United States, this issue provides readers with a wealth of information and stunning visuals on various topics related to nature and the outdoors. With its monthly publication frequency and paid circulation, this magazine offers a glimpse into the world of the mid-20th century, making it a worthwhile addition to any collection of magazines or National Geographic publications.