1851 3¢ Orange Brown Issue On Cover, 27 covers; range of shades and townmarks including red Williamstown, Vt. and blue Warren R.I. (tying stamp), as well as major cities, many with margins to touching, a couple 4-margin; most plated and many with Dr. Amonette attest (color and sometimes plate position), condition varies, nice reference group. Scott No. 10-10A; $5,670  Estimate $500 - 750. $0