By the Grace of G-d
[...]
Brooklyn, N.Y.
To the eminent, G-d-fearing and well-loved chassid,
[Reb ...],
Greetings and Blessings!
In response to your notification that a son was born to you in an auspicious hour -
May it be G-d's will that you [his parents] bring him into the Covenant of Avraham Avinu, and just as you bring him into the Covenant, so may you bring him up to Torah, to marriage, and to good deeds, and may you raise him - together with your wife (may she be well) - in prosperity.
With blessings of Mazel-Tov,
( - )