Stamp with zodiac on its body and Stars of David on its tab is courtesy of Hayim Shtayer and I thank him for telling me about the connection between these symbols as it appears on this peculiar stamp. The same connection is hinted in The Testament of Solomon, which deals with King Solomon’s controlling demons with his ring (Solomon’s Seal), which latter became the name of the pentagram and of the hexagram.
F. C. Conybeare Published his translation to the pseudepigraphical work titled The Testament of Solomon (dated 1-3 C.E.) in the Jewish Quarterly Review, October 1898. The zodiac appears in a few places there, i.e.,
Chapter 10. And Solomon said to him: "Tell me, O demon, to what zodiacal sign thou art subject." And he answered: "To the Water-pourer
Chapter 73: Then the first one came forward, and said: "I am the first decans of the zodiacal circle, and I am called the ram, and with me are these two."