1919, 40gr on 2k Grodno Military Communications Courier Post, Germany Occupation WWI (Block of Four, Certificate) Surcharge 40 Gr on 2 Kop grey-green block of four. 1919 Grodno German courier military post issue. Polish surcharge "POCTZA POLSKA 40 GR." and legible german overprint "V.P. Grodno". Each stamp used with the initial of lieutenant Bauer "B". Certificate of Tobias Huylmans - BPP and AIEP expert. Used. Genuine and in a perfect state of preservation. Full original gum. (Image)

1919, 40gr on 3k Grodno Military Communications Courier Post, Germany Occupation WWI (Block of Four, Certificate) Surcharge 40 Gr on 3 Kop dark-rose block of four. 1919 Grodno German courier military post issue. Polish surcharge "POCTZA POLSKA 40 GR." and legible german overprint "V.P. Grodno". Each stamp used with the initial of lieutenant Bauer "B". Certificate of Tobias Huylmans - BPP and AIEP expert. Used. Genuine and in a perfect state of preservation. Full original gum. Small hinge remainder on the front upper sheet margin. (Image)