Florida Seashells - KEY - 1968:  A seashell or seashell, also known simply as a shell, is a hard, protective outer layer usually created by an animal that lives in the sea. The shell is part of the body of the animal. Empty seashells are often found washed up on beaches by beachcombers. The shells are empty because the animal has died, and the soft parts have decomposed or been eaten by another animal.  A seashell is usually the exoskeleton of an invertebrate (an animal without a backbone) and is typically composed of calcium carbonate or chitin. Most shells that are found on beaches are the shells of marine mollusks, partly because these shells are usually made of calcium carbonate and endure better than shells made of chitin.  Seashells are commonly found in beach drift, which is natural detritus deposited along strandlines on beaches by the waves and the tides. Shells are very often washed up onto a beach empty and clean, the animal having already died. Empty seashells are often picked up by beachcombers.   The Best Shelling Beaches in Florida:
* Tigertail Beach.
* South Beach on Marco Island.
* Cedar Key.
* Caladesi Island State Park.
* Captiva Island.
* Shell Island Near Panama City Beach.
* Jupiter Island.
* Fernandina Beach.
This Photochromatic postcard, mailed in 1968, is in good condition.  Florida Natural Color.  Koppel Color Cards. Hawthorne, N.J.