1870. PROOF to 4 sk. in red/ultramarin and ultramarin/re. One reconstructed pair and on singel stamp. All with singnature “Chr. Vermehren” chief og Generalpostdirektoratet. Imperforated, inverted frames and without watermark. Extremely rare. One cert. enclosed. Ex. Lasse Nielsen [ P18Dg/Dh ] [ (*) ]