SG 418 1/2d Deep Bright Green N33 (5) 1924 Watermark Block Cypher L 29 Imp Control in Post Office fresh unmounted mint condition.

Like any control piece I list as Post Office fresh UM this of course includes the selvedge control, as generally a premium is being paid, so one expects that and the actual stamp to be untouched unlike some standard marginals where it may be of lesser interest, value or significance.

Scarcer shade here too of course where some of the value and price is attached.