Following the early post prohibition launch of Legendre Absinthe, the F.A.C.A. "requested" that J.M. Legendre change the name of Legendre Absinthe, to a name that would better fit the Federal regulations, so Legendre Herbsaint, became the new name for Legendre Absinthe.
March 1934 New Orleans billboard announcing "Herbsaint, The New Name for Legendre Absinthe".
U.S. Trademark Document
Original 1934 Unused Herbsaint Label