I found three boxes of Kodaslide last week in Brussels flea market of the Marolles (Place du jeu de balle).
Here is the scanned of the slides.
No edit just basic color correction is done on Lightroom 4.
Unfortunately no information concerning the people included in the photos are provided on the boxes.
All photos are taken (assume the same day) during Expo 1958 in Brussels.
I will be posting more from this set soon.