Auction: 20024 - The "Dubois" British Commonwealth Collection of Stamps and Covers
Lot: 444
Gibraltar
2013 60th Anniversary of Gibraltar, Queen Elizabeth II
20p imperforate plate proof upper left corner colour trials blocks of four (9) on gummed paper in blue, magenta, yellow, black, blue and magenta, black and blue, yellow and blue, yellow and magenta and black, blue and magenta; fine and scarce
David Stirrups, June 2017
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Estimate
£500 to £700
Starting price
£400