USA 1928-30 1st Byrd Antarctic Expedition, cover to USA franked US 2c canc fine "S.S. ELEANOR BOLLING" duplex d/s MAR 23 1930. At left B.A.E. pictorial cachet (Antarctic outline, ship, huts & dog team in polar scene) with misspelt "S.S. ELEANOR BOLING" text below. Signed in ink by Rear Admiral R. E Boyd. Mailed while at Dunedin, NZ. Fine.