Netherlands East Indies. (Penang). 1888. Envelope addressed to France bearing Netherlands East Indies SG 17, 50c carmine tied by '108' in numeral with adjacent Medan date stamp '12th May' , endorsed 'via Penang and Brindisi' , routed via Singapore and Penang with 'Ned Ind. Penang' and Singapore transits '15/5' with octagonal French paquebot 'Ligne N Paq. Fr. No 8' dated '17 Mai' and hand-stamp 'Ned Indie/ Over Naples' in blue on face.
Nice single franking routed via the Dutch Postal Agency in Penang and Singapore and carried by French paquebot.