Proof  Eight examples, two monocoloured with sheet margin at left, the others bi-coloured (one with thin at top and one slightly oxidised), all on wove paper. Photo
Imperforate Colour Trials
Proof Eight examples, two monocoloured with sheet margin at left, the others bi-coloured (one with thin at top and one slightly oxidised), all on wove paper. Photo

Details
Proof Eight examples, two monocoloured with sheet margin at left, the others bi-coloured (one with thin at top and one slightly oxidised), all on wove paper. Photo