135173 1918 REGISTERED AND INSURED MAIL LONDON TO SWITZERLAND WITH 5S SEAHORSE DE LA RUE (SG410).

1918 REGISTERED AND INSURED MAIL LONDON TO SWITZERLAND WITH 5S SEAHORSE DE LA RUE (SG410). 1918 KGV 3d red-brown registered envelope London to Bienne in Switzerland sent insured mail with red 'INSURED' label bearing KGV 10d and 5s De La Rue Seahorse (SG410) cancelled 'LONDON' 22 MY 18. Unfortunately 5s Seahorse part covered with Censor label and wax seals however any De La Rue Seahorse used on cover are scarce to very rare. On reverse Bienne date stamp 30 V 18. (Ref 135173).