Please e-mail me if you would like to suggest a collection. It would be too difficult for me to list all the chewing tobacco items in my collection. I will therefore list some items in each of the categories indicated below. Chewing tobacco has been sold in many forms and packages in the US over the years. It is commonly sold either as loose tobacco, or as cut plug.
Plug is just pressed tobacco that is cut into small bricks.
Since chewing tobacco has such a high sugar content, it is very easily pressed. One of the reasons it has such a high sugar content is that it is harvested by cutting the whole plant, whose top leaves are very sugary, rather than just the individual lower leaves, as with cigarette tobacco. For those of you who really don't know, chewing tobacco is lightly chewed, then placed between ones' cheek and gums, where the nicotine and other poisons are absorbed by the mucus membranes there. Any saliva that accumulates must be spit out since swallowing it can make you violently and copiously sick. I remember seeing them in the local post office in Wheaton, MD as a child.