Analysis of information sources in references of the Wikipedia article "Temple Warning inscription" in English language version.
During work on the construction of a new road outside St. Stephen's Gate, Jerusalem, by the Municipality of Jerusalem, during December 1935, the remains of a vaulted building of late Roman or Byzantine date were found. Beneath this building was an unpretentious tomb-chamber, cut in the rock, with the (shallow) graves excavated in the floor; it was approached by a stairway in the familiar manner and yielded a number of pottery lamps of a mid-fourth-century A.D. type.' An apparently rebuilt wall belonging to the vaulted building (itself evidently later than the fourth-century tomb below) yielded a fragment of a stone bearing a Greek inscription, which, on examination, proved to be a second copy of the Greek text of the stelae erected around the inner court of the Temple of Herod, forbidding foreigners, or Gentiles to enter, on pain of death... It is possible that this second inscription may have been intended for a less conspicuous position than, say, the Clermont-Ganneau copy, and have been, accordingly, assigned to an inferior workman... The only plausible explanation would seem to be that suggested above for our Temple inscription, i.e. that it was placed inconspicuously, and therefore no one cared.
It was so satisfactory that skilful natives promptly forged several duplicates
Upon it stood pillars, at equal distances from one another; declaring the law of purity, some in Greek and some in Roman letters; that no foreigner should go within that sanctuary. For that second [court of the] temple was called the sanctuary: and was ascended to by fourteen steps from the first court.