This is a souvenir sheet from Mongolia, issued in 1996 to commemorate the CAPEX '96 (Canadian Philatelic Exhibition) international stamp exhibition in Toronto, Canada Images on the sheet: The CN Tower in Toronto, one of Canada's most famous landmarks, is visible in the background on the left. A passenger plane is flying in the foreground. Stamps included: The sheet contains two stamps depicting historical motifs ("stamp on stamp"): A stamp with a face value of 350 MNT (Mongolian Tugrik), depicting an early Mongolian postage stamp. A stamp with a face value of 400 MNT, depicting Canada's famous first postage stamp from 1851, the "Three Pence Beaver." Cataloging: In philatelic circles, this sheet is often referred to as Michel Block 256 or Scott No. 2247 listed