Ceylon 1912-25 50r dull purple, watermark MCA, overprint "SPECIMEN", SG320s.
Fine mint example with fresh appearance and original gum. A few perforations show faint traces of toning on reverse, but much better than normally seen with almost none of the usual rubbing.
"SPECIMEN" examples were used solely by postal administrations for reference purposes to help spot any attempted forgeries.
The Stanley Gibbons catalogue value is £225.
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