1915, blue or black ''C.E.F.'' and surcharges on German Cameroon stamps, ½p/3pf-5s/5m, complete set of 13, full OG, NH (low value is VLH), F/VF and very rare in sound condition, four high values with D. Brandon certificate, SG #B1/13, £900 as hinged (Image)

1915, blue or black ''C.E.F.'' and surcharges on German Cameroon stamps, ½p/3pf-5s/5m, complete set of 13, full OG, LH or previously hinged, mostly VF, four high values with D. Brandon certificate, SG #B1/13, £900 (Image)

1915, black ''C.E.F.'' and surcharge 4p (short ''4'' variety) on German Cameroon 40pf carmine and black, full OG, VLH, VF, expertized by H. Kohler, D. Brandon certificate, SG #B7a, £1,000 (Image)

1919, three stamps of German Cameroon with blue or black surcharge ''C.E.F.'' and new denomination in British currency, used together with French Occupation stamp on registered mixed franking cover from Buea to Berne via Victoria and Liverpool, all transits and arrival markings, VF and scarce (Image)