Finished! One month knitting time. 13” diameter. I am pleased. And now I have a chart for this beauty! By the way, I did not change needle size as the instructions specified; I knit the whole thing on 1.5 mm needles.

It’s a little hard to assign a difficulty rating to a pattern like this. An experienced lace knitter will find nothing tricky. There are a couple of decisions about how to work multiple stitches into single stitches or double YOs. The double YOs along the sides of the pinwheels are worked as a single stitch. The 2 sts into one st early on I worked as a knit in front and back, to avoid making a hole; the 5 sts into a double YO in the outer scallop I worked as a pkpkp, to make a big hole and make it easier to work the decreases in the following round (i.e., insert the needle into the K stitch first).
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Fuller description of this project is at:
https://www.ravelry.com/projects/TiaJudy/small-mystery-doily

This is another in my research on the lovely doily I show under the project name Pat’s Pine Cone, with details under Small Mystery Doily. With fellow lace knitters, I now have a list of four published versions of this pattern, all apparently slightly different.

The most recent discovery is a frayed and taped together Mez publication, the only version so far to include a chart. However the chart is obscured along the folds by darkened cellophane tape. I have reconstructed the chart in Excel, knitting along as I come to the illegible lines and it’s working out well.

I suspect that of the four versions, this was the original publication. I think it’s generally true that German charted instructions get translated to written-out versions in other languages, rather than the other way around.