Older putups were 290 yds/4 ozs. The Cestari website now lists this yarn in 3.5 oz./100 gram skeins with 250 yds.
The 2012 label lists 230 yds/100g and the recommended gauge is 5 stitches/inch on size 7 needles.
You may hand wash in warm water with mild soap or machine wash on gentle cycle. Allow to dry naturally on flat surface. DO NOT DRY CLEAN so as to retain the natural lanolin oils in the wool.