CF Modular Tentage Framework

[Geoff Winnington-Ball (RIP)]

The following are Jon's pics of the frame and related bits:

Pic 1: First image is overview of the framework. The apex of the arch is the item of which I have 2 to trade. At either end 1/2 way down are the "knuckles" of which I need 2.

Pic 2: Shot of the "knuckle", side view.

Pic 3: Shot of the underneath of a "knuckle", showing the tab in the centre (with a ring). What I'm looking for must have this tab.

Please reply to Jon Skagfeld, NOT me...