The following ô-kozuka are illustrated below:
This is an iron ô-kozuka measuring 4 3/8 inches by 7/8 inches. It has a crescent moon outlined in silver and a silver fan that is decorated with shakudo and gold clouds.
This is an ô-kozuka from the Jakushi school of fittings measuring 3 7/8 inches by 3/4 inches. The ko-gatana blade is made by the famous smith, Korekazu. It is signed Ishidô Fujiwawa Korekazu Tsukuru 石堂藤原是一作.
This is a normal sized kozuka used for a size comparison.