Peru. (British Post Offices). 1861. Stamp-less envelope written from 'Jose Canevaro, Callao' (with oval firms chop in blue on face) date 'Sept 28' addressed to London cancelled by Callao double arc date stamp '29th Sept' on reverse, rated '2s' in m/s and London receiver 'Oc 29th' in red. Nice item from the British Post Office in Callao.