Postcard CA-1103457 gstone Canada 5 May, 2021 26 days 7,493 miles zjf1976 China 31 May, 2021 Loading map... gstone said: posted over 2 years ago Those stamps have the footprints or animal tracks (of the animals on the stamp) in the bottom left hand corner. But you can only see them if you put the stamps under a black light. You need to sign in to leave a comment!