Cross Styles and their Symbolic Meanings-

link to Lutheran's Online, Lutheran Symbols & Crosses John 1:29

Holy Communion - This shows the bread and the cup of wine, which are the true body and blood present in the Lord's Supper. "The  the water of life.'" - Revelation 21:6 Anchor - The anchor cross originated in primitive days in the catacombs, formed by combining an anchor and cross. This cross can be used to symbolize the Christian's hope, which is anchored in Christ. Anchor crosses are occasionally a feature in coats of arms, in which context they are referred to by the heraldic terms "anchry" or "ancre." This cross was also the emblem of Saint Clement, Bishop of Rome; who, according to tradition, was tied to an anchor and tossed into the sea by the emperor Trajan. This cross is also known as the mariner's cross. Ansated - Also called the crux ansata (handled cross), this looped tau cross symbolizes life through Christ. "Jesus answered, 'I am the way and the truth and the life. No one comes to the Father except through me.'" - John 14:6 Holy Communion - This shows the bread and the cup of wine, which are the true body and blood present in the Lord's Supper. "The Lord Jesus, on the night He was betrayed, took bread, and when He had given thanks, He broke it and said, 'This is my body, which is for you; do this in remembrance of me.' In the same way, after supper He took the cup, saying, 'This cup is the new covenant in my blood; do this, whenever you drink it, in remembrance of me.'" - 1 Corinthians 11:23b-25 Crossed Keys - The Keys of the Kingdom represent the authority of the Church to forgive sins in Jesus' name. Two keys represent dual authority to open Heaven to repentant sinners and to lock Heaven to the unrepentant. This is also a common emblem of St. Peter. IHS / JHS - The most common Christogram is IHS or IHC, derived from the first three letters of the Greek name of Jesus. Because the Latin alphabet letters I and J were not systematically distinguished until the 17th-century, JHS and JHC are completely equivalent to IHS and IHC. Lord Jesus, on the night He was betrayed, took bread, and when He had given thanks, He broke it and said, 'This is my body, which is for you; do this in remembrance of me.' In the same way, after supper He took the cup, saying, 'This cup is the new covenant in my blood; do this, whenever you drink it, in remembrance of me.'" - 1 Corinthians 11:23b-25
Crossed Keys - The Keys of the Kingdom represent the authority of the Church to forgive sins in Jesus' name. Two keys represent dual authority to open Heaven to repentant sinners and to lock Heaven to the unrepentant. This is also a common emblem of St. Peter.

John 1:29
Borromean Rings - A Trinitarian symbol, Borromean rings consist of three circles or ellipses linked together to form a Brunnian link. This mathematical term means that no two of the rings are linked, yet they are all linked. This illustration has the Latin words "Trinitas Unitas" inscribed in the circles, which mean "Three in One, and One in Three." Sometimes this symbol is placed inside of a triangle, another symbol of the Holy Trinity. Ichthus - The Greek word for "fish," ichthus or ichthys is a Christian symbol for Christ, and is composed with the initials of these five words: Iesus Christos theou uios soter: Jesus Christ Son of God Saviour. During the persecution of the early church, this symbol was among those used by Christians as a means of identification and to designate a place of gathering.