Rav Sholom B. Volpo, in his book “Long Live the King Moshiach” (p. 62), mentions that Chabad Chassidim have always believed that the Lubavitcher Rebbe’s signature contains a hint to the word “Moshiach”. When Rav Volpo carefully examined the Rebbe’s various signatures from 1951 to 1982, he was astonished to discover that the word “Moshiach” gradually became more apparent in the Rebbe’s signature over a period of 15 years.
Interestingly, in “Dvar Malchut” (see “Itvaaduyot” 5752, volume 2, p. 221), the Rebbe King Moshiach discusses the acronym MIYAD (meaning “immediately”), which refers to three individuals: Moshe, Yisrael, and David. The Rebbe explains that these letters are not related to three separate eras (Moshe in his time, Yisrael in his time, and David, King Moshiach, in his time), but rather to one unified concept, as the letters are written together.
In a footnote (No. 95), the Rebbe notes the importance of paying attention to how RAMBAM (the teacher and guide of the wavering) signed his name—sometimes with separate letters and sometimes with merged letters.
This suggests that the Chassidim’s attention to the Rebbe’s signature was both logical and justified.
