1969, DDR: Sicherheit im Straßenverkehr kompletter Satz UNGEZÄHNT, postfrisch und selten! (Image)

1971, Liechtenstein. Set of 4 die proofs (intaglio engraving) each showing the same 70c stamp with an non used illustration of an empty country road. One proof in dark violet on brownish paper (two-sided manuscripted "27.I.71"), one proof each in darkgreen, black and brownish-red respectively on white paper watermarked "PTT Wertzeichendruckerei GD" (rear side each manuscripted "27.I.71"). From the Karl Bickel archives. VERY SCARCE!
Value Add Taxes (19%) will be added to the hammer price and the buyers premium. (Image)