6 very good/fine used singles from the 1866-1892 Service Overprints. The Scott numbers range from O17 to O26, and include O17, O19a, O20, O24-O26. 1a is re-engraved, 2a us yellow shade & 1a has a tiny corner crease at LR. 2022 Scott Classic Cat $95.5. Our estimate of the value based on the condition is $30.
