Greece, Athens Stadion/18 Apr. '06. Special Olympic double circle postmark tying 1l + 2l Olympics on 1906 Olympic picture post card showing the Entrance to the Olympic Stadium of the Kings of England & Greece, used locally, card slightly creased at right (not affecting adhesives or postmark), April 18, 1906, on this day at the Olympic Games the Marathon race was won by Canadian runner William J. Sherring, included are two commemorative Canadian picture post cards showing Sherring (one used & one unused), used card with minor abrasion, Very Fine, this special postmark was used at the entrance to the stadium; Athens Stadion card with 1996 M. Tsironis certificate. Estimate  $500 - 750. $0 (Image)