Could be a short form of Messrs. (abbreviation of Messieurs), which is sometimes used in English before the company name. In Spanish it should be removed.

Hi Laura,

I believe it is simply a typo for Ms, what was commonly the abbreviation of Miss, as in the following explanation, taken from the web:


... Many women thought that it is not fair to use Mrs (abbreviation of Mistress) to address
married women and Ms (abbreviation of Miss) to indicate unmarried women ...
www.expressindia.com/ie/daily/19970730/21150743.html - 8k - Resultado Suplementario - En caché - Páginas similares

I cannot say in English, but in modern day Spanish, the use of Srta or Señorita is considered politically incorrect since it is sexist ("señorito" or "srto." are not used as a manner of addressing a man if he is single). Instead, we use Sra as an indiscriminate way of addressing a woman, regardless of marital status.

Hope to help,

Suerte y sonrisas,

Álvaro :O)