(astrology) The curve in the top stroke may vary from a capital Ω-shape to a small bump.
(alchemy) The bottom horizontal line is sometimes omitted, both in isolation and in compounds, making it identical to some forms of ⟨🝇⟩. The lines may or may not end in serifs. Cursive form ⟨🝠⟩.
(2): The 1833 US Nautical Almanac using the symbol ⟨♎︎⟩ for stars in the constellation of Libra, here 2 ξ ♎︎ (Xi2 Librae), γ ♎︎ (Gamma Librae), η ♎︎ (Eta Librae), θ ♎︎ (Theta Librae).