Any idea where this foto was taken?  And whatever does that sign mean and for whom is it intended?

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Here’s a pulled-back version of the same shot.

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If you said the Seine flowing through Paris, you’d be correct.  And the sign?  Well . . .  click here for an assortment of river signals and beacons used on French rivers.   Translation of the sign . . . boaters are prohibited from making a U-turn in either direction.  Information cones from Herrou Xtian, who previously supplied fotos used in this post and that.  And the fotos, come from Maureen, who previously sent fotos of European tugboats herehere and other places.

Reminder:  Tonight is Tug Art Show III, fundraiser for Pegasus Preservation Project.  Here and here are two of my prior posts on the 1907 tug Pegasus.   See you there.   In fact, a large print of this foto will be available there for sale.