In David Yallop's book, In God's Name, which exposes the murder of the Pope who was in power for only 33 days, Freemasonry was a major issue. According to Yallop, Pope John Paul I, Albino Luciani, was murdered because he was going to take drastic measures and make drastic changes within the Vatican.
At one time the United States postage stamp was 33 cents. It may still be I'm not sure I have to check on that.
By the way, Prince Charles Coat of Arms (Revelations 13:2) has another symbol--The Order of the Garter. The Order of the Garter is the parent organization over Free Masonry, world-wide. When a man becomes a 33rd Degree Mason, he swears allegiance to that organization, and thereby to Prince Charles.
It has been proven that most of the 33rd degree Freemason's worship Lucifer and the signature numbers 13 and 33 are a homage to their "god."