1-3- ongebruikte 5 cent diepdonkerblauw op dun papier (1a) plaat I pos. 87, 10 cent rood op dun poreus papier (2q) plaat X pos.87 en 15 cent donkeroranje (3b) pos.87, alle breedgerande pr.ex. Met volledige originele gom en handstempelopdrukken SPECIMEN, zeldzaam, ex collectie Van Balen Blanken, catw. €7.500,-
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