The BlackLetterhead theme is a WordPress theme that was released back in March 2005 as part of the WordPress 1.5 Theme Competition. The theme was one of hundreds of themes that were originally featured on WordPress.com. It has since been retired. The theme is no longer in development, but you can download the final version from my Github page. Thousands of WordPress sites still use the theme to this very day. Hope you enjoyed, and continue to enjoy using it.
Ulysses