Made in Italy, this medal features the Tau Franciscan cross. Francis used the TAU in his writings, painted in on the walls and doors of the places where he stayed, and used it as his only signature on his writings.
The first recorded reference to the TAU is from Ezekiel 9:4, "Go through the city of Jerusalem and put a TAU on the foreheads of those who grieve and lament over all the detestable things that are done in it." The TAU is the last letter of the Hebrew alphabet and looks very much like the letter "T".