Lillian Eichler,
Book of Etiquette, Volume 1, Part 2…
(1921)
“ Blank, she sends her acknowledgment to Mrs. Blank alone. An invitation may never be acknowledged on any kind of a visiting card, although a visiting card may be used in an invitation. For very large, formal social functions, invitations are always engraved. A young girl does not issue invitations to men in her own name, but in that of her mother or guardian. ”
