Beautiful slip joint hinges

Joni is working on a project I’ll probably say more about later, but it involves the use of slip joint hinges. She sent this photo of some handmade wooden ones that I admire as sculpture.
IMG_0853.JPGThere are many kinds of slip joint hinges but one kind that most of us know is part of ordinary pliers. You know how they work, to open the jaws wider, don’t you? Simple and ingenious.