PRESTAMP MAIL TO GB: Small 1806-1851 range inc. 27 Aug. 1827 EL to Suffolk with "INDIA SOLDIERS/3/LONDON" hs on front (applied in error and cancelled, with ms "1/2" showing the correct rate), and faint 2-ring "CAWNPORE/POST OFFICE" hs on flap; 9 Apr. 1851 EL to Yorkshire with fine black double-ring "CALLAO" cds (from a British Post Office in Callao) and red Receiver's Mark on reverse; plus other related examples. (10)Cross Reference: INDIA (Image)