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The numbers dont correspond to anything in the K&P catalog but match the identical shapes Wally Frank illustrates in the Captain Peterson charts later on, so these are obviously stock numbers used at WF
Smokeless tobacco use: People who use tobacco products such as snuff, chewing, or snorting are 50 times more likely to develop cancer of the gums, cheeks, and lining of the lips
Riley WT, Barenie JT, Woodard CE, Mabe PA
SLTs encompass those products that are not burnt but instead consumed orally or nasally [2]
In a recent study in the journal Nature Communications , researchers systematically reviewed and synthesized the literature on the health risks associated with chewing tobacco