1936 MAIL LONDON TO ARGENTINE 2/6D AND 5S SEAHORSES (SG450/451). Envelope (228 x 194) London to Buenos Aires, Argentine with 2/6d and 5s Seahorses (SG450 and 451), both with faults, also 6d purple, latter uncancelled but Seahorses cancelled LONDON 13 FEB 1936. Via the German route with very fine strike "DEUTSCHE LUFTPOST/EUROPA-SUDAMERIKA" cachet in red. (Ref 104788).