Germany, 1936 Olympic Souvenir Sheet, Imperforate & 4pf + 3pf Value Shifted. Without gum, sheet gently cleaned with faintest trace of yellow spotting, still Very Fine, a major Olympic Rarity; with 2006 Hans-Dieter Schlegel certificate. Michel No. Block 6 €20,000 for o.g. ($27,400). Scott No. B91 var.  Estimate $2,000 - 3,000. $0 (Image)