Just finally got round to making one of these.
And I thought it might be useful for other fans of vintage haberdashery and knitters of old patterns. Many charts available only go down in size to the more useful needle sizes for contemporary knitting – ie: around 3.25mm.
Yet many Victorian patterns call for 1mm or smaller. You can see from gaps in the Old UK sizes’ numbers below, there were some intermediate sizes, based on old imperial wire gauges between 05.mm and 1mm – that were very non metric, therefore less easily available now. Otherwise, this is a slightly more complete Old UK/metric conversion chart; useful for vintage knitters – or rather, knitters of the vintage.
Feel free to use, or copy for your reference!