My dad grew up in London. Our family comes from very humble means, but as a young teen, he had the opportunity to travel abroad to Paris with his school. He gave me these items from the trip, which would be about 1950-ish.
The top piece is a scan of a little placard that the students had to wear around their necks, so that they could be returned to the school if they got lost.
The middle photo is the view from his host family's apartment. I love how grungy everything looks. If you look closely, it's very faint, but you can see the Eiffel tower in the distance - as my dad noted on the back of the photo.