So-called "spectacle" or other irons or devices secured to the lower corners of sails to which the sheets are attached. The spectacle-iron or iron clew is usually formed with three eyes, to which the leach-rope, the foot-rope of the sail, and the sheet or sheet-block are attached.
SEE OR SEARCH CLASS
403, Joints and Connections,
210, for eye forming thimbles on the end of a rope or cable.
