The John Minns East Africa: I.B.E.A. Co. Overprints on Great Britain: 1/2a. on 1d. cancelled by fine central "LAMU/A/MY 30/90" c.d.s., light toning. The only example of usage in May from either post office. Photo. (Image1)

The John Minns East Africa: I.B.E.A. Co. Overprints on Great Britain: 4a. on 5d. cancelled by fine central "MOMBASA/C/JU 24/90" c.d.s., a few slightly nibbled perfs. at foot. The earliest recorded date of usage from the Mombasa post office. Photo. (Image1)