Guano Related Covers.
Three, one is Great Britain No. 33 (SG 43), tied by "466" barred oval and corresponding "Castle St, Liverpool Ap. 1, 67" circular datestamp on registered folded Phospho Guano Company
letterhead to Edinburgh, reverse with well-struck company wax seal showing a Penguin, one Peru No. 14 with huge margins showing clear "Islas" cancel with docketing "Iles de Chincha, 19 Sept. 1868"
, and one cover with manuscript "Chincha Islands, Apr. 7, 60"
docketing entering the mail in Panama with original enclosure briefly mentioning the guano trade, Fine trio
Image Magnifier / Download
Power Search for Comparables