This letter tells your lover how you feel on an anniversary.
1234, Main Street
Boston, MA 02123
07 April, 2005
<Recipient Address Goes Here>
I just wanted to tell you how much I love you on this, the occasion of our <number> <kind of anniversary>. You have made the time we have spent together wonderful and precious beyond words, and though not every moment has been perfect, I wouldn't trade a single second of the time we've shared.
Thank you so much for all you've given me. I love you very much.
encl: <List of enclosed items goes here>