This tube is unlabeled, so we don't know the exact details, but it is a vintage Scottish, woolen-spun weaving yarn from the mid-20th century. It is a somewhat hairy wool , in  natural white color. It is single ply, and appears to be a 1/14 count.  The rube weighs 8.8 ounces and is estimated to be 1,000 yards.

Approximate Yardage: 1000 yards, 914 meters
Weight: 8.8 ounces, 249 grams