It may be "Attn" or "FAO"
Date: ____________________ Name of Monestary Attn: (Name of person you want to contact, or title if name not known) Address City State Zip RE: (brief description of Subject, 1 liner) Dear, or To Whom It May Concern,
When addressing a letter to a particular individual at a large company you might use the abbreviation "Att" or "Attn", eg. Att: Mr B Brown, or Attn: Mr B Brown. Either is acceptable.
At the bottom
at the bottom of the letter after your name. example: Sincerely, Your name cc
Business Name Attn: Person's Name Address City, State Zip Code
Prefix
You put their first name and last name.
yes
by every letter on the vertex or side you can put a letter and that will name the polygon.
Attn
Attn or FAO