A genuine Louet replacement backpost for older S10 and S15 spinning wheels, listed under current supplier code SR0173.
This is specifically the old-model backpost and is not the current S10C back-post assembly. Please check your wheel model and construction before ordering.
If this item is not currently on the shelf, you can still order it through my website. I will order it from Louet especially for you, let you know the expected timescale and keep you updated while it is on its way.