charged, that if the article ■was known in commerce as “sewing silk,” then the verdict must be for the defendant; hut if not, then, as it was a manufacture of silk, it was free. That it was for them to determine whether the article was. known in commerce under the name of “sewing silk” or not If it was not, although it was composed of silk and used for sewing, it was free.
The jury found for the plaintiffs.