4d Blue Cooke Plates Plate 2 Harrison two-line imprint pair, right hand unit inserted with hinges and does not belong, and toning down right edge of left-hand unit. A very rare imprint. BW 112(22)za, cat AU$20000
4d Blue Cooke Plates Plate 1 strip of 3 from bottom left corner of sheet showing removal of Cooke monogram, perfs split between second and third units, otherwise fine with two stamps MUH
4d Bright Ultramarine Harrison Plates variety 'Watermark Inverted', the top pair shows a slight kiss print to the bottom frames. Fine with large part OG, lower pair MUH. BW 113Aaa, cat AU$1200 for 2 x MUH and 2 x MLH