CTOs are usually not considered desirable by collectors, but, with some issues of stamps, postally used examples are very hard to obtain; and some catalogues like Scott's will list values for CTOs and place a premium on postally used copies.
The vertebral body is the main part of the bone in the spinal column. Between these areas of the vertebrae are the intervertebral discs, which support the vertebrae above and cushion the area between the bones. The major portion of the vertebra faces the body, in front of the spinal cord, in humans.he vertebral body is the main part of the bone in the spinal column. Between these areas of the vertebrae are the intervertebral discs, which support the vertebrae above and cushion the area between the bones. The major portion of the vertebra faces the body, in front of the spinal cord, in humans.
The vertebral column, (spine or spinal column), extends from the base of the skull to the pelvis, forming the vertebral axis of the axial skeleton. It is made up of irregular bones called vertebra which are separated from one another by fibrocartilage called intervertebral discs. Note on the Number of Bones. The number of bones in the human body is generally reported as 206. However, the actual number of bones can vary somewhat from person to person. Some people may lack certain bones and others may have extra bones.