These are postcards from about 110 years ago from a Zurich based company that was expermienting in a new way to colorize photos and add the effect of sunlight, must’ve been quite a shock after everything being in black n white forever.
MATTHEW'S ISLAND
MATTHEW'S ISLAND 
I figured out how to add text above the images so I don’t have to add my notes in the comment section after this…
I like the one on board the ship best. Hurts your eyes though if you starte at it too long.
The one of the Tunis Bazaar is cool too – did you notice what looks like a ghost in the middle of the street in the distance?
The dog cart was also funny till you notice how tired the dogs look.
The last one is of a monument – I googled it and it turns out it’s a German monument that celebrated Germany’s victory of France in the “Prussian War of 1870”.