1928 Great Britain Registered military cover affixed with mixed combination of 2 horizontal pairs from  1924 KGV NB15 1½d Red-brown Booklet Pane plus 2 adverts for ' Cable via Imperial /BEAM Empire Telegrams “via EMPIRADIO” added with singulars KG 1/2 d + 1 D. All tied with 'Army post office 20 JA 28' . Reg label on side,