I was born in Loveland, Colorado, the Sweetheart City. Five years before I was born, the city started the Valentine re-mailing program. Thousands of cards are sent to the post office each year to be stamped with a cachet and postmarked from Loveland. My sister still lives in Loveland and each year sends the official card. This is the card I received in the mail yesterday, postmarked Loveland and hand stamped with this year's cachet below.
If you would like to read more about this - click here -Cards.