I only use half pint (8oz.) jars. That way I can open a jar to smoke and leave the others to age.
I can put a pound of ribbon cut tobacco in 5-6 jars depending on the blend and how tight I can pack it. Also, I recently put a 250 gram box of St. James Flake into 3 jars. Two were fairly well packed and there was room to spare in the third.
My general guideline for jar packing is 1 oz. tobacco by weight needs about 4 oz. volume in a mason jar. This is not a written-in-stone thing, which you will find out if you try to follow it with Peter Stokkebye bulk, but for the most part it works well. For my 1 lb. bulk bags, I use a 2-quart jar. I have to press it down a little, but not too much.
That is impressive. I find that I don't have the time, or better put, I don't take the time, to produce those cool labels.
I typically use pint wide mouth jars for the cellar and 1/2 pint jars for the smoking shelf. I usually pack a pound into four jars, more to less. So far, so good.