A 'Rebbe Dollar' is a one-dollar bill that was personally given by Rabbi Menachem Mendel Schneerson (1902–1994), the seventh Lubavitcher Rebbe, to visitors who came to 770 Eastern Parkway in Crown Heights, Brooklyn. The practice began in 1986; the Rebbe stood for hours every Sunday, giving each visitor a dollar along with a brief blessing, with the explicit instruction that the dollar be given to tzedakah (charity).
The practice became one of the most recognised acts of the late twentieth-century Chabad-Lubavitch movement. Many Rebbe Dollars were preserved by recipients rather than given onward; today they are held within Chabad-affiliated families as objects of memory and continuity.
Tannenblut's Rebbe Bottle No. 770, the apex of the Bereshit Series, encloses an original Rebbe Dollar within its presentation case. The bottle's numeral, 770, references 770 Eastern Parkway directly.