"letters of congratulations" is a grammatically correct phrase and can be used in written English.
It is typically used to refer to written messages expressing congratulations or well wishes to someone. Example: The company received numerous letters of congratulations for their successful launch of the new product.
However among the letters of congratulations for your daughter's birth was yet another threatening letter.
Includes official awards correspondence, letters of congratulations, invitations to lecture, personal correspondence.
Letters of congratulations re appointment to Northeastern Illinois Metropolitan Area Planning Commission.
He also claimed that network anchors had sent him "letters of congratulations" on Tuesday about a meeting with lawmakers that was broadcast on television that day.
In 1910, when Cobb's teammates believed Nap Lajoie of the Cleveland Naps had ended Cobb's streak of batting titles, many were reported to have sent Lajoie letters of congratulations.
Dacre said he had received letters of congratulations from New Labour figures including Gordon Brown and David Blunkett, and said he could claim partial credit for Brexit due to his newspaper campaigning for "a mature debate on mass immigration which has nothing to do with race and everything to do with numbers".
Letters of congratulation poured in from unexpected sources.
Includes resumes, letters of recommendation, etc. Letters of congratulation to Cole for appointment as chairman of NCIP.
The letters of congratulation will come flooding in, the emails, tweets, royal Facebook messages with special elbow length white gloves, and so on.
"Notes: Paul Bowles 1985, Tangier (for Vanity Fair piece)" Letters of congratulation, miscellaneous publishing letters, letters regarding "Amanda" and "IT'S 6 AM, DO YOU KNOW WHERE YOU ARE".
One of the letters of congratulation that Washington received after the Atlanta speech came from a young professor named W. E. B. Du Bois, who commended him for "a word fitly spoken".
