France, Alsace-Lorraine, 1870, 4c Gray, Burelage Reversed, in combination with 1870, 1c bronze green + 10c bistre brown + 20c ultramarine, burelage upright, all tied by "Metz, 19 Nov, 70" cds's and some blue contemporary ink, registry etiquette at top tied by postmark, Very Fine, a wonderful and very rare four color franking. Scott No. N10+N1+N6-N7  Estimate $1,000 - 1,500. $0 (Image)