66 West B Street,
Dec. 1st.

OR,

Mr. and Mrs. John B. Smith
regret that owing to a previous
engagement they are unable to accept
Mr. and Mrs. James’s
kind invitation to dinner on
Monday, December twenty-third,
at eight o’clock.

66 West B Street,
Dec. 1st.


Where an invitation is meant to be informal, a social form of note with formal phraseology is often sent, thus:

My dear Mrs. Smith:

Will you and Mr. Smith dine with us informally on Thursday evening, December twenty-third, at eight o’clock?

Sincerely yours,
Mary James.

99 West A Street,
Dec. 1st.