The introduction to the sleeping helmet pattern says "These helmets are much prized by soldiers in time of war, as well as by many other men whose business or pleasure exposes them to much severe weather, or to night air." The accompanying illustration has the caption: "Crimean Sleeping Helmet. With long neck, which, turned up, forms a warm wrap and comfortable support when sleeping." The pattern specifies grey with crimson stripes, which is how Joyce has knitted it (though why would you want stripes on your sleeping helmet? I don't know.)
The helmet is knitted in double rib, and I was interested to see that the trick of getting an even colour change when you knit stripes in rib was already known in 1900. The pattern says "N.B. All through this pattern at each change of colour the first round or row must be knitted plain; also the first stitch of the row must be knitted with both colours to avoid a break where the stripes begin and end." I previously wrote here about a pattern published in 1919 that gave the same advice to knit the first row of each stripe, so that the colour change in the purl ribs is even - that seemed surprisingly early, but evidently it was known even earlier.
In the sleeping helmet pattern, the striped sections have just two rows in each stripe, i.e. two rows crimson, two rows grey, two rows crimson, and so on. That means that alternate rows in these sections are all knit stitches ("knitted plain"), and only alternate rows are ribbed. So I think it's remarkable that this is not evident on the right side of the helmet - it just looks like ordinary double rib. The wrong side does look less like double rib, but it is still corrugated as it should be.
|Striped section, wrong side.|
Thanks very much to Joyce Meader for her generosity in sharing these things.