Photos of the Rebbe's tefillin knots were published for the first time in a newly-published sefer, showing a unique style of making the kesher. commissioned a sofer to explain the details.
OU Israel Center Torah Tidbits - Parshat Beshalach 5783 by
First-Time Photos of Rebbe's Tefillin Knots Show Unique Details
First-Time Photos of Rebbe's Tefillin Knots Show Unique Details
Tefillin - The Ultimate Guide by afikim - Issuu
The Secret Picture of the Lubavitcher Rebbe That Fueled the Soviet
First-Time Photos of Rebbe's Tefillin Knots Show Unique Details
ferberprint
Tefillin hi-res stock photography and images - Alamy
The Secret Picture of the Lubavitcher Rebbe That Fueled the Soviet
Page 115 – Chabad Lubavitch World Headquarters
ARMED The story behind the launch of the Rebbe's Tefillin
Tefillin hi-res stock photography and images - Alamy
First-Time Photos of Rebbe's Tefillin Knots Show Unique Details
Incognito Photos of the Rebbe