used G.H.W. & Co. (G. Hitchcock Williams & Co.): The selection of underprints on 1864-79 1d. plates 107, 110, 111, 113, 115, 117, 118, 119, 122, 124, 127, 135, 138, 141, 143, 144, 145, 161, 165, 167 and 170; poor to fine. S.G. Spec. PP219