Specimen -- 30c. mauve, a vertical strip of three, each handstamped "SPECIMEN" (Type HK4), fine. A scarce multiple. (from the collection of Dr. Conrad Latto) .
Specimen -- 30c. mauve, a vertical strip of three, each handstamped "SPECIMEN" (Type HK4), fine. A scarce multiple. (from the collection of Dr. Conrad Latto) .
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