17th century Low countries crossbow with windlass

[Marcus den toom]

Thank you all so much, its an even more interesting piece than my own research had panned out.
No markings as far as i can decern.
Does anyone know what rope would be best to replace this flimsy one?

And though i believe you (Jasper) on the dating i am curious to know the (stylistic) differences between a 17and 18th century bow of this type.