Princes Issue - Postal Stationery item

Quality: PWST

1909, postal stationery Stibbe #25P, "10c red-brown + 10c green on pink-lilac - Prince 1909 issue" with typo overprint "CONGO BELGE" in black, cancelled to order "MATADI 30 SEPT 1909", scarce, with Lindekens certificate, vf