1 piastre on 20 Pf medium ultramarine, overprint blackish blue, metallically shining, private reprint (Foure), in perfect condition unused with original gumming, field 28, so far only approximate 15 examples known, photo expertize Jäschke-Lantelme BPP: "in faultless, unused condition. ", Michel 3.000.- (clearly undervalued)