San (letter) San (letter) San (Ϻ) was an archaic letter of the Greek alphabet. Its shape was similar to modern M, or ϡ, or to a modern Greek Sigma (Σ) turned sideways, and it was used as an alternative to Sigma to denote the sound . Unlike Sigma, whose position in the alphabet is between Rho and Tau, San appeared between Pi and Qoppa in alphabetic order. In addition to denoting this separate archaic character, the name "San" was also used as an alternative name to denote the standard letter Sigma. The existence of the two competing letters Sigma and San is
Letter of Peter to Philip discourse upon the nature of Christ. It was probably written in the late 2nd century or the beginning of the 3rd, originally in Greek, but translated into Coptic in the Nag Hammadi text. The title of the Letter is originally "The Letter of Peter Which He Sent to Philip", but is commonly simplified to "The Letter of Peter to Philip". Another copy of the letter has more recently been found in the Codex Tchacos and is titled plainly as "The Letter of Peter to Philip". The Nag Hammadi Library is a collection of thirteen codices that was found near the