Iceblossom

I did "butt joints" using bias/straight binding for a couple of decades before I switched to the mitered corner technique. I found they held up well to washing and use, but decided to switch to the show entry technique because I might as well...

Typically you do the long sides first, you leave the ends raw because you will sew over them. Pin on short sides and sew, then flip inside out and and sew (with tiny stitches!) the binding. Grade cut the ends to minimize bulk and flip right side out.

I never did the stitching along the outside edge, think I could with something small. I did try stitching down the binding by machine but I'm happiest with the results I get doing the blind stitch finish by hand even though I'm really slow.

Edit: I do think this was birthed, I see no evidence of seaming on the back. Two sided bindings can be done and is a fun finish for some projects, especially if it has two "right" sides.