Two items about Zodiac signs:
"The Constellations", fresco by Giovanni de Vecchi (1536 - 1614), Farnese Villa, Rome, Italy, SS issued by Niue on January 24, 1986 to publicize the International Halley Watch year. Note several Zodiac signs like Aquarius, Aries, Sagittarius and Cancer:

The Zodiac signs, the high value of the 1961 definitive set by Israel that Roberto already posted. This stamp is in large format:
