I recently visited a small antique mall in Albuquerque where I immediately sought out the linens in all the booths. I've mentioned before that I love to stir through piles of antique linens and wonder about the lives and stories behind the needlework. On this day I found several "antique" pillowcases with crocheted edgings. I put the term in quotes because I don't think they are antiques, used yes, but probably not antique. The fabric and thread did not match in age. Possibly someone crocheted on the edge of pre-owned pillowcases. These pink pillowcases were worn, but the thread is pretty new and not laundered as often. But I thought the edging pattern was pretty and so I took a picture with my phone. I can deduce the pattern quite easily so I'll probably use it on something for the hope chest.
I can see that the person who crocheted this edging used a single thread to hand sew a foundation on the edge of the pillowcase, creating the spaces for the initial row of double crochet stitches. The initial crocheted row is simply a (3 dc, ch 1) in each space around the pillowcase. The second row is (2 dc, ch 1) in each ch-1 space from the previous row. It may work out to be (2 dc, ch 2) rather than the ch 1. I'll have to experiment to determine that. The third row looks like (sc, ch 4) in each space from the previous row. The final row is also (sc, ch 4). It is a pretty pattern and I'm happy to have stumbled on it.
Here is a second edging. The initial foundation and the first row is the same, and I think it was crocheted by the same person, but I'll have to work on figuring out the pattern...
The initial foundation and first row is again the same in this third example. I'll have to experiment with this pattern also.