1924-26, Great Britain King George V: Booklets and Booklet Panes: watermark block cypher 11/2d. booklet pane of four (the two stamps at right removed) inverted w/m, with two printed labels showing ''INDIA-RUBBER INLAID SPONGE/R.G. McKINLAY'' adverts printed in green, F. MNH. S.G. Spec. NB15(72)
