Definition of "calamanco"

What a fuss thou makest!—as if it concern'd the good people to be inform'd, That a man with pale face, and clad in black, had the honour to be driven into Paris at nine o'clock at night, by a postilion in a tawny yellow jerkin turned up with red calamanco———

1765, Laurence Sterne, The Life and Opinions of Tristram Shandy, Gentleman