1936, 20 Rp. Postal stamp with double embossing IV "in the indication of value '20,' in 'HELVETIA' and at bottom and upper margin" (field 44), in the field determined horizontal block of eight with normal stamps and left lower corner of the sheet, in perfect condition mint never hinged (rest of hinge in the margin extraneous), superb in every respect (choice copy), in this kind especially decorative, Michel 300.- (SBK-no. 205)