Didn't realise you hadn't seen one. I just had a look to see if I had a pic that showed more of it. This is the best I have on file. It stands just under shoulder height for me, the legs have a spreader bar around them about 10 inches above the ground. The legs have sharpened points ... the bit drawn in red is what I'm missing- it's an elevation screw set up. If anyone knows where I can find one... it's a left hand thread inside a right hand thread. Turning the knob extends or retracts both ends of it, raising or lowering the elevation.