Original yarn: Patons 2 ply fingering yarn with a tension of 8 sts (2 patterns) to just over 1" (1.1/8th)
For success you should work a tension piece.
The pattern leaflet is from circa late 1930s or early 1940s and it has been folded down the middle and has a small fold across the top right corner. The price on the cover is 3d.