Auction 333-341 Nigeria, Cameroon, Sudan & Worldwide Postal History - Day 4

International Reply Coupon 1927: Imperial type, Proof, imperforate bottom left corner marginal block of four, printed on block cypher watermarked paper, with "WATERLOW & SONS LIMITED LONDON" imprint, without printing to reverse, from the original sheet of nine. Has two vertical creases, one heavy through the left side pair which has caused several pin holes, also the bottom left impression has a hole above the ship mask and a surface rub...

AEROGRAMME 1953: Ife Bronze 6 d. dark-grey & orange-brown, variety "Vignette Missing", used, from Ikot Ekpene to Harrogate, England, dated 25 September 1953, small part of vignette visible at base, inner part missing (consists of front and back), opening tears around edges, nonetheless an eye catching. Rare; one of three recorded and the only used example.
Reference: The Postal Stationery of Nigeria, by Peter Hørlyck, illustrated on...

AEROGRAMME 1956: Ife Bronze 6 d. black & orange, variety "Vignette and Text Missing", unused, very fine and rare; one of two recorded and the only unused example.
Reference: The Postal Stationery of Nigeria, by Peter Hørlyck, illustrated on pg. 127

AEROGRAMME 1961: Oyo Carver 3. d, Proof in unissued shade of blue on buff wove paper, marked "I" in pencil, a paper clip impression visible and small corner bend lower left, attractive and scarce; one of three proofs recorded. 
Reference: The Postal Stationery of Nigeria, by Peter Hørlyck, illustrated on pg. 399

Biafra 1962: Nigeria Benin Mask 6 d. air letter form, the word "NIGERIA" crossed through and replaced beneath with manuscript "BIAFRA", used from Aba to Dublin, Ireland, dated 27 November 1969, franked with 1969 2nd Anniversary of Independence 2 s. 6 d, cancelled by a "ABA" circular datestamp. To the reverse a "LIBREVILLE GABON" circular transit datestamp in black dated 29 December 1969. An unusual and scarce usage.
Reference: The...

Biafra 1969: Air letter form sent from Mbutu Ngwa to Margate, England, letter internally dated 11 October 1969, with a Aba postmark dated 17 November 1969 alongside a "LIBREVILLE GABON" double circle datestamp in black dated 10 January 1970. To the reverse a violet oval cachet "S.S. PETER & PAUL PARISH / MBUTU NGWA". Rare use of the Biafra aerogramme as intended. The only recorded example.
Note: According to Dudley Prestedge the...

1886: 5 s. blue, wmk. Crown CA, perf 14, an unused example, fresh and fine, large part og. Scarce, just 600 sent to the Colony. Cert. Brandon (1992) Gi = £ 750.

1886: 10 s. purple-brown, wmk. Crown CA, perf 14, a used example cancelled by barred oval obliterator in black. Fine and rare. Cert. RPSL (1997) Gi = £ 1'200.

Niger Coast Protectorate Oil Rivers 1892/94: Overprinted set ½ d. to 1 s., unused, all handstamped ''SPECIMEN'' in black (Samuel type GB9), fresh. The 1 d. has a couple of pulled perfs. and the 5 d. has one, otherwise mainly fine, large part og. Useful set Gi = £ 400.

Niger Coast Protectorate Oil Rivers 1893: ½ d.+ ½ d on Great Britain 1 d. lilac, unsevered pair, surcharged in red at Old Calabar, an unused example, the left half showing variety straight top to "1" in "½", large part of og. which is browned at top from hinge, otherwise fresh and fine. Rare; only 936 bisected examples were surcharged. Cert. Brandon (1983) Gi = £ 500+.

Niger Coast Protectorate Oil Rivers 1893: 'HALF / PENNY' in green on Great Britain 2½ d. purple on blue, an unused example, Gibbons Type 3 handstamp surcharge in green. Scarce; just 120 stamps issued. Cert. RPSL (1991) Gi = £ 300.

Niger Coast Protectorate Oil Rivers 1893: 'HALF / PENNY' in carmine on Great Britain 2½ d. purple on blue, an unused example, Gibbons Type 4 handstamp surcharge in carmine, strong colour and fine appearance, small part part og. Scarce; just 120 stamps issued. Cert. BPA (1996) Gi = £ 450.