Abandoned or forgotten

I was hurrying back to my jury duty session when I saw these, sitting on a ledge along the river Seine

Abandoned on the right bank of the Seine 138/365
Abandoned or forgotten?

No idea what they were doing there and didn’t have much time to check them out or browse. They did look pretty old.

Across the river Seine is Conciergerie, which is now part of Palais de Justice