In 1970, graphic designer Tom Doerr selected the lower-case Greek letter lambda (λ) to be the symbol of the New York chapter of the Gay Activists Alliance. The combined male-female symbol (⚦) is used to represent androgyne or transgender people and when additionally combined with the female (♀) and male (♂) symbols (⚧) it indicates gender inclusivity, though it is also used as a transgender symbol. These symbols first appeared in the 1970s. Two interlocking female symbols (⚢) represent a lesbian or the lesbian community, and two interlocking male symbols (⚣) a gay male or the gay male community. Lesbian and gay interlocked gender sex symbols
