PANAMA. 1886 envelope from H.M.S. Caroline to London with a G. B. 1883 4d dull green tied by a very fine strike of the PANAMA DE 29 86 ‘C35’ barred duplex canceller. A London JA 22 87 arrival cancel is on the back of the cover. HMS Caroline was a satellite class composite screw sloop of the Royal Navy and launched on 25 November 1882. She was later reclassified as a corvette. A scarce stamp on cover, rare used from Panama.