including W15, W16, W17, W18, W19+20, W21 x 5. Plus extra W17 4f in block of 4 with missing button variety, W16 used set and W18 odd value x 2. Please view.
.jpeg "1968-70年一組10套文革新票，包括文14、文15、文16、文17、文18及文19黑水白水共5件，另有多一件文17票4分漏鈕扣變異四方連")
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