Proof Block Larger Than four VIGNETTE IMPERFORATE PLATE PROOFS: 5b., 10b., 20b., 30b., 40b. and 80b. in issued colours, each in a complete sheet of 100 accompanied by companion sheets of issued stamps, the latter each dated "26/6/61". Also further issued sheets comprising 1t. dated "28/1/53", 10b., 20b. and 40b. "16/12/59", and Aliens' Certificate 100t. and 200t. similar sheets dated "21/8/53".