The Study 808 is a jumbo sized pencil created for early elementary students learning to write. I don't have very many Empire Pencil Company pencils made in Canada. I'm assuming that these pencils were made in the old Eagle factory in Drummodville, QC. Eagle became part of the Berol Corporation and later Berol was purchased by Empire in the mid-1980s. The two-pack of Study pencils seen below say Montreal, Quebec, Canada at the bottom.

The Empire Study pencil is very similar to the Eagle Alpha pencil also made in Canada and probably at the same factory in Quebec. The Study might be a slightly larger outside diameter.

The Primer Print 1 is a red jumbo pencil with a 10 mm diameter (a bit larger than the blue Primer Print 2 below). This version of the pencil has a big spot for students to write their name on. Bob Truby's site has photos two different versions of this pencil. 

I found this collection of Primer Print 2 pencils at a second hand store in July 2018. They're in really nice condition. They're a large diameter (approx. 8 mm) round pencil for younger students.