When were the first boxes of Crayola crayons sold?

The first documented box of wax crayons stems from an 1885 article in American Stationer referencing Eagle Pencil Co. having developed a box. Franklin Mfg. Co. sold boxes of industry crayons starting in 1876 but these weren't the kind used for children as they contain toxic ingredients. Franklin and Standard crayon started doing their school crayons around 1894. Milton Bradley and Dixon Ticonderoga began selling crayons around this time too. Ads and references can be found in trade magazines dating from that era but there is currently nothing to substantiate who sold first. The same goes for Europe. Conte was selling crayons very early and the Faber family from Germany did as well. It's hard to differentiate which were selling colored pencils and which were selling wax crayons as they referred to both as crayons.