For sale is an attractive service pin, stamped on the back CTO 1/10 10K. I did read that this does not mean that the pin is 10K, but rather that it is 1/10 of that, so evidently this pin is made of base metal rather than precious metal.
The pin is a small oval. It measures approximately a little more than a half inch across and approximately a little less than a half inch tall.
The background of the pin is a silver toned metal. There are 3 pretty blue stones, and something that looks like either a stylized plane or bird that is in a gold toned color.
This pin was very hard to photograph due to it’s small size.