D18 1924-31 2/6d Purple on Yellow George V Watermark Block Cypher Postage Due B 24 Control in Post Office fresh unmounted mint condition.

Stamp including the selvedge in full, PO fresh condition.

Like every stamp I sell this has been fully checked and confirmed by myself as correctly identified and described not just removed from album where it was listed as such. Aided here with the attached selvedge I always like to see on postage dues.