The Sunlight book of knitting and crocheting (1915)
Gray, Adelaide J., [from old catalog] ed · Chicago, W.G. Perry · leaf 11
Place the hook in a loop on the chain, put yarn over hook and pull through both loopson needle at once. SINGLE CROCHET … Take up 1 loop on the chain, put yarn over hook and pull through both loops on needleat once. 10
Knitting · Crocheting
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