US marines get airborne in helicopters from carrier 'Siboney'.
Unissued / Unused material.
Title - 'Copters lead way in new assault tactic'.
US Marines go airborne in helicopters. United States of America (USA).
MS marines climbing into helicopter. MS helicopter taking off from carrier 'Siboney'. LS carrier at sea. LS helicopter landing on 'Siboney'.
LS 'Siboney' at sea. LS marines racing to helicopter. LS helicopters taking off from carrier.
Cataloguer's note: American commentary.