billhead

plural billheads

1. historicalA printed form used by traders in making out bills or rendering accounts, often with fancy designs.

   From the association's secretary each member received a package of more or less gorgeous blanks, printed like a billhead, on handsome paper, properly ruled in columns

   1883, Mark Twain [pseudonym; Samuel Langhorne Clemens], chapter 15, in Life on the Mississippi, Boston, Mass.: James R[ipley] Osgood and Company, →OCLC

   1 more example

   His establishment was now one of the most considerable in Folkestone, and he insisted on every inch of frontage by alternate stripes of green and yellow down the houses over the shops. His shops were numbered 3, 5 and 7 on the street, and on his billheads 3 to 7.

   1905, H. G. Wells, Kipps, Book 1, Chapter 2