Vintage Montreal Canada 1967 EXPO 20 Official Postcards Original NOS

Description

Vintage Montreal Canada 1967 EXPO 20 Official Postcards Original NOS.
This is for a sealed package of 20 Expo '67 Montreal Canada postcards still in original plastic.
Great preowned condition, edges and corners are crisp.
There is a faded yellow mark that appears to be on the postcard under plastic so I don't know if the mark is on all cards or just the last card (see last photo).
Plastic is torn in upper right corner and starting to open along right side of package (see photos 5 & 6).
5 1/2" x 3 1/2"