Sierra Leone 1963 Postal Commemoration 3s on 3d black and rose-red, type 79 surcharge, block of 4 showing error '1895' for '1859' on lower left stamp (R3/3), SG282a.
A wonderful quality unmounted mint block of four with full original gum. Also includes small guarantee handstamp on reverse.
A very rare and exceptional quality position piece with a stark and remarkable error.
The Stanley Gibbons catalogue value is £508+.
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