Lot
5267 
/o
Ecuador, 1866, 4r Red, Printed on Both Sides, three singles; two unused in shades, one o.g. (corner margin thin) and other a marginal single with no gum, also a used example with red town cancel, F.-V.F. Scott No. 6c Estimate $500 - 750.
This variety is one of the scarcest of the first issues. It is believed that an initially too light impression led the printer to repeat an impression on the back side of the paper in some sheets.
Realized: $450