Chair Set S-317 by The Spool Cotton Company

Chair Set S-317

Crochet
January 1952
yarn held together
Thread
+ Thread
= Thread ?
6 stitches and 6 rows = 1 inch
in single crochet
2.75 mm (C)
2300 - 2450 yards (2103 - 2240 m)
US
English

Pattern requires 14 balls of Knit-Cro-Sheen and a chair cushion.
It uses thread held double throughout.