Great Britain: 1929-30 Antarctic Research Expedition commercial cover franked GB KGV 1½d brown tied by PAQUBOT boxed cachet. Alongside Funchal Madeira 1 Jan 30' cds cancelled 'Kaapstad 6 FEB 30' cds. Addressed to Mr J.J. Miller (crew, sail maker on expedition), S.Y. Discovery c/o 'Ellanman + Buchnell Ltd' Strand St, Cape Town, SA', & readdressed to '40 Marine Branch Melbourne, Australia' indistinct b/s with instructional 'To await further arrival'. Enthusiastically opened, some minor aging but an interesting historical cover.