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.
Vertebral column of a goat. The vertebral column, also known as the backbone or spine, is a bony skeletal structure found in vertebrates. It is formed from individual bones called vertebrae (singular: vertebra), which houses the spinal canal, a cavity that encloses and protects the spinal cord.There about 50,000 species of animals that have a vertebral column.The human vertebral column is one of the most-studied examples.t is commonly called the spine, or simply backbone. The articulating vertebrae are grouped into their regions; there are seven cervical vertebrae of the neck (C1 to C7); twelve thoracic vertebrae of the thorax (T1 to T12); and five lumbar vertebrae of the lower back above the pelvis (L1 to L5).