We've all come across the classic tool makers clamps I bet quite a few of you made them when you were at school or college. But I didn't realise just how many variations there were until I started browsing through some old American Machinist Magazines on line:-
So this is the score so far
The Classic these are my well used collection.

And a few variations I've come across:-






And this is my own effort of the last example

I made them as I thought they would be easy to use one handed whilst the other hand held something in place

Can any one add to the list ?.
Stew