The monogram, or emblem, IHS contains the first and last letter of the Holy Name. The letters IHS referring to this monogram do not contain periods, or full stops, after each letter as it is an abbreviation of the name IHESUS.
The Definition and Meaning of the I.H.S. as a Catholic Symbol
The I.H.S. Christian Emblem (containing periods, or full stops) is an acronym of the Latin: Iesus Hominum Salvator which translates as Jesus, Saviour of man. Saint Ignatius Loyola is represented in Religious Art by the monogram of the Jesuit order, I. H. S.
The definition and the meaning of Symbols or Icon in early religious art forms. A Catholic sign or icon, such as the IHS Symbol, is an emblem, object, character, figure, or color used to represent abstract ideas or concepts - a picture that represents an idea. A religious icon, such as the IHS Symbol, is an emblem, monogram or symbolic representation with sacred significance. The meanings, origins and ancient traditions surrounding Christian symbols date back to early times when the majority of ordinary people were not able to read or write and printing was unknown. Many were 'borrowed' or drawn from early pre-Christian traditions.