Originally Posted by lovelyl
Here are photos of my two treadles, one is a metal straight-leg and the other the standard treadle.
Loveyl, you will have to google for an image of a wooden straight-leg to see that. It has the same configuration as a metal straight-leg. You may also find looking through the vintage photo shop interesting: http://www.quiltingboard.com/t-130994-1.htm