Kingsfords Silver Gloss Starch Box

I have been helping a friend clean out a hoarders property (so much fun) and this box was inside one of the barns. I was pleased to find it in fairly good condition with nice bright colors. Most of what was inside the barn had been destroyed by 60 years of hard Minnesota Winters. The box was still full of the starch but I dumped it out.
No date on the box but I have seen ads for Kingsfords in magazines from the early 1900's. Thanks for looking.