Howardsville Colo., 4/17/76, manuscript postmark on neat 1874, 3¢ green entire to Boston, Mass., Very Fine and rare, illustrated in Jarrett's Colorado book, ex Person. Estimate  $1,000 - 1,500. This is the only known territorial cover from Howardsville (formerly Bullion City), and one of only a handful of territorial covers known from the western slope of the Rocky Mountains. This cover realized $3,250 hammer in our February 2008 sale. $0 (Image)