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.
The convention for how to use messrs has evolved over time.
mnli hypothesis: The convention for how to use messrs has evolved over time. 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.