Jamaica 1921 6d red and blue-green 'Abolition of Slavery' imperforate plate proof Falkland Islands stamps Using the remarkable 'bouncing bombs'

Using the remarkable 'bouncing bombs' invented by British engineer Barnes Wallis

The printing variety is the result of two separate silver plates being used for the printing

lightly cancelled by two strikes of 'WINNIPEG OC 13 05' violet circular date stamps

South Africa 1930-45 ½d black and green

and 500 ordinary knights

Jamaica 1921 6d red and blue-green 'Abolition of Slavery' imperforate plate proof Falkland Islands stamps Using the remarkable 'bouncing bombs'Jamaica 1921 6d red and blue green 'Abolition of slavery' (the famous stamp prepared for use but not issued for political reasons) IMPERFORATE PLATE PROOF with good to large margins, in issued colours on ungummed watermark MCA paper. A fine quality proof of this most famous stamp from Jamaica of very fine appearance, despite ironed creases which are barely detectable. Most importantly, it is certainly the best of the three known examples in existence.