Steve
In the resource section, Phil Allin' news letter number 5 has a detailed drawing of the bracket. There is alss a drawing of it on page 46 of Conibear set of drawings.
Bill Edstrom
The Conibear drawings are located under "Prints and sketches" in the resource section.
Bill
Steve:
I believe that Bill Underwood makes or has made these J-hook brackets. His contact info is listed in the resources section under "hard to find parts". Good luck.
A400 Guy