SG 177 10/- Ultramarine on Blue Paper Position KF SPECIMEN Type 9 overprint in fine and very fresh lightly mounted mint condition with little more than gum impression to reverse where hinge once adhered.

Keener price to reflect the small surface mark to lower left corner on this very scarce stamp.

Unmistakable, delicate bluing seen to the best on such mint stamps of course rather than used copies.