The first pocket knife is a very old souvenir, probably from the early twentieth century, commemorating Avignon.
The second is from the pontificate of Pope Pius XI: 1922 – 1939. He is pictured on one side and the image of the Eucharist and the Madonna and Child is on the other side.
The third is from the pontificate of Pope Pius XI: 1922 – 1939 with his image and the cross keys and tiara on one side and an advertisement from 1925 on the reverse side of the knife.
The fourth is from the pontificate of Pope St. Pius X: 1903 – 1914 and his image is on both sides of the knife.
The fifth is from the pontificate of Pope Pius XII: 1939 – 1958 with his image on one side and St. Peter’s Basilica on the other side.