Proof  1d. (7) on unwatermarked paper in different colour combinations, three on blue paper and two on green paper, fine. Photo
Imperforate Colour Trials
Proof 1d. (7) on unwatermarked paper in different colour combinations, three on blue paper and two on green paper, fine. Photo

Details
Proof 1d. (7) on unwatermarked paper in different colour combinations, three on blue paper and two on green paper, fine. Photo