1924-26 Block Cypher Watermark
unused The mint selection, including values to 6d. in control blocks of six, 10d. control strip of three, 1½d. experimental paper, block of four, a range of values apparently without watermark with 2d. and 2½d. blocks of four, a range of "SPECIMEN" overprints (type 23) comprising perforated ½d., 1½d., 2d., 5d. and 9d. singles, imperforate 1d., 10d. and 1/- pairs; mostly fine. (82)
Details
unused The mint selection, including values to 6d. in control blocks of six, 10d. control strip of three, 1½d. experimental paper, block of four, a range of values apparently without watermark with 2d. and 2½d. blocks of four, a range of "SPECIMEN" overprints (type 23) comprising perforated ½d., 1½d., 2d., 5d. and 9d. singles, imperforate 1d., 10d. and 1/- pairs; mostly fine. (82)