(1) The contents of all letters shall be limited to private matters.
(2) Postage stamps may be allowed to be purchased for letters addressed by prisoners to their relatives in foreign countries at their cost.
(3) If the prisoners have no cash in credit, it shall be supplied at government cost in deserving cases, and at reasonable intervals, at the discretion of the Superintendent.
(4) The prisoners shall not be allowed to misuse such privileges.
(5) In addition to the number of letters allowed in a month, the prisoners shall be allowed, if they so desire, a special letter in order to inform their friends or relatives of their transfer from one prison to another.
(6) This shall be in addition to the letters allowed to them.
(7) Ex-prisoners and habitual prisoners, who apply to see their friends lodged in a prison, may not be permitted such interview by the Superintendent, unless and until there exists a genuine reason for such interview.