CIRCA 1920 UNPAID MAIL TO DEVONPORT, DEVON WITH BOXED '2D/620/TO PAY POSTED UNPAID' CHARGEMARK AND 2D POSTAGE DUE. Circa 1920 envelope to Stoke, Devonport, sent unpaid with fine strike boxed '2d/620/TO PAY POSTED UNPAID' charge mark of Plymouth and alongside 2d postage due with 'PLYMOUTH/DEVON'undated cancellation in purple. (Ref 79404).