LHF Billhead by Tom Kennedy includes 3 extraordinary typefaces inspired by period style billheads and letterheads. Each typeface is uniquely different, yet they have also been designed to interchange with one another. Try mixing 1890 uppercase with 1900 lowercase. Or 1910 uppercase with 1900 lowercase. The possibilities are endless. Alternate characters also included for each font.
See more axamples at: http://www.letterheadfonts.com/fonts/billhead.php