Unpublished: 30 Rp. palace courtyard Vaduz blue, unperforated, complete original sheet to 50 piece, unused without gum (was only so manufactured), over the 5. stamp above with plate number "3", very rare piece, the total issue was only 20 sheet, most of whom separated be might. A connoisseurãs lot! Certificate with photograph Marxer BPP: "genuine and immaculate", Michel 12,500.-