KGV SG340a 1/2d Downey No Cross on Crown and Partial Example U/M

1/2d yellow-green (Die 2) right-hand marginal block of 6 (3 x 2) watermark Imperial Crown lower middle stamp shows No cross on crown variety and a partial omission on stamp to the left (SG 340a/Spec N4(6)b) scarce fresh fine u/m.