1935 UNDERPAID MAIL PLYMOUTH TO GLASGOW. 1935 envelope (on reverse insignia HMS ACHILLES) with KGV 1½d photogravure cancelled PLYMOUTH/DEVON 14 MAR 1935 with Plymouth "2D" chargemark and "More to pay/above 1oz/620" chargemark - addressed to Glasgow with 2 x 1d postage dues CLYDEBANK/GLASGOW datestamps 15 MR 35. Slight soiling. (Ref 79420).