This letter offers your best wishes for someone's wedding anniversary.
1234, Main Street
Boston, MA 02123
07 April, 2005
<Recipient Address Goes Here>
I understand that you are celebrating your <number> wedding anniversary and I just wanted to congratulate you on such a wonderful occasion. I can't help but admire your togetherness. The love and affection you have for each other after all these years is such a blessing and such an achievement. It's truly a joy to know a couple like you.
I wish you nothing but happiness, good times, and continued togetherness in the years to come. Congratulations on your wedding anniversary.
encl: <List of enclosed items goes here>