https://shop.blueline-trailers.co.uk/index.php?route=product/product&manufacturer_id=12&product_id=195
Knott Avonride KFG35 - AC35 Cast Lockable Coupling Hitch Head - SB048/ 575004.
Knott Avonride KFG35 - AC35 Cast Lockable Coupling Hitch Head - SB048/ 575004.
knottavonridecast