ROYAL NIGER CONSTABULARY & OIL RIVERS QUARTET: Two envs. with flaps embossed "ROYAL NIGER CONSTABULARY/[crown]" franked with 2½d blue stamps cancelled with v. fine purple boxed "THE ROYAL NIGER COMPANY/CHARTERED & LIMITED/[date]/POST OFFICE/ BURUTU" both addressed to Spital in Cheshire & with red "PAID/LIVERPOOL/BR.PACKET/[date]" cds's, one redirected Kent with Bromborough & Eltham thimbles on the back. Also 2 envs. posted in 1893 or 1894 to Bebington franked with 2d stamps optd "BRITISH/PROTECTORATE/OIL RIVERS" & either ½d Jubilee or "NIGER COAST/OIL RIVERS/PROTECTORATE" stamps. Fine and attractive items. Cross Reference: LANCASHIRE - LIVERPOOL, CHESHIRE, NIGERIA - OIL RIVERS (Image)