Windvane steering’s old model

[Escape Blue]

I have a 40 years old Halmatic with probably same age windvane steering and wonder if anyone knows the brand

 

[dombuckley]

That looks very much like a Hasler SP3. No longer made, but the paddles and vanes are easily DIYable, and any frame repairs can be made by any competent stainless welder. Good vid of one working here: SP3