At my Victorian grandmama's knee I was taught that one uses the abbreviation messrs (plural of mister) only when addressing two men with the same surname residing at the same address--an admittedly Victorian situation.
I never met my Victorian grandmother.
mnli hypothesis: I never met my Victorian grandmother. premise: At my Victorian grandmama's knee I was taught that one uses the abbreviation messrs (plural of mister) only when addressing two men with the same surname residing at the same address--an admittedly Victorian situation.