Size: 7/8". Usually used in making First Communion Rosaries. The IHS is a symbolic monogram of Christ used by the Roman Catholic Church. This monogram consists of the Greek letters iota, eta, and sigma, the first three letters of the name Iesous (Greek for Jesus), the letters of which are also used to spell out the phrase "Iesous Hominum Salvator," "Jesus, savior of man." The IHS emblem today most commonly represents the communion wafer, and is closely asociated with the Jesuit Order.