![used 4a. Third Printing, Head Die III, Frame Die I, bright blue and red [2] with good to very large margins and showing blue wavy line at right, neatly cancelled; a fine and attractive example of this rare stamp. B.P.A. Certificate (1993). S.G. 21, £1,100. Photo](https://www.christies.com/img/LotImages/2001/SKS/2001_SKS_01269_0470_000(023303).jpg?w=1)
細節
used 4a. Third Printing, Head Die III, Frame Die I, bright blue and red [2] with good to very large margins and showing blue wavy line at right, neatly cancelled; a fine and attractive example of this rare stamp. B.P.A. Certificate (1993). S.G. 21, £1,100. Photo
注意事項
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