Lot 50378 – 1891 4a Vermilion and Blue reprint horizontal pair

1891 4a Vermilion and Blue reprint horizontal pair from plate XXVI (pos.19-20), with outer frame of wavy lines and rosettes in each corner on yellowish unwatermarked paper, SPECIMEN on each stamp on reverse, small thin and small wrinkle at top left, fine appearance, cert. RPS (2009) (Spence 15, rating O2)