This letter, complete with translation, is available for download below.
(Kislev 5729) [November-December 1968]
In the case of good prospects that there should be bochurim who should be interested in the matter- it is understood that the aforementioned is worthwhile and good.
Published in “Mikdash Melech” part 3, pg. 139.
In the case of good prospects, etc.: In response to the question regarding the study of Issur V’Heter [Smicha] for bochurim at the age of 19-20.