cover 1926 (April) 3d. black on yellow showing "POSTAGE" inverted, affixed to 1936 envelope registered to London and bearing additional 1d., 2½d. (2) and 3d. (2) from the same series, together with other adhesives (3, one crossed by blue crayon); wax seals removed from reverse, which detracts somewhat from the general appearance. R.P.S.Certificate (1967). S.G. 149a. Photo