This pattern (from 1992) listed Scheepjeswol Soedan bulky yarn - available in 1.75 oz. / 50 gms balls of 46 yds.
Amounts required for this yarn for sizes S (M L XL XXL):

Natural #1328 - 15 (16 17 19 21)

Red #1387 - 3 (3 3 4 4 )

Gold #1346 - 3 (3 3 4 4 )

Green #1359 - 2 (2 2 3 3 )