Saint Nicholas is the patron Saint of Pawnbrokers

Feast day December 6th

In 325, he was one of many bishops to answer the request of Constantine and appear at the First Council of Nicaea; the 151st attendee was listed as “Nicholas of Myra of Lycia”.[17] There, Nicholas was a staunch anti-Arian, defender of the Orthodox Christian position,[18] and one of the bishops who signed the Nicene Creed.[19] Tradition has it that he became so angry with the heretic Arius during the Council that he struck him in the face.[20]

Saint Nicholas is the patron saint of pawnbrokers. The symbol has also been attributed to the story of Nicholas knowing of a family which came on to hard times who had three daughters. Knowing that if payments were not met, the daughters would be sold into servitude.
Hearing of the girls’ plight, Nicholas decided to help them, but being too modest to help the family in public (or to save them the humiliation of accepting charity), he went to the house under the cover of night and threw three purses (one for each daughter) filled with gold coins through the window opening into the house.
Years later pawn shops adopted three golden color balls which they would hang outside their store front in honor of St. Nicholas

In Christ, Joseph

Some of these sources came from Wikipedia.