No worries.By the looks of things, it is probably an older model of this www.the-digital-picture.com/Reviews/Arca-Swiss-Monoball-B1-Ballhead-Review.aspx
But I will see what they say.
(But I will see what they say.
Redsushi! Whoop! Whoop! Yes, that one!,
Sun 13 Apr 2008, 11:06,
archived)