It's not a great blend and I don't think a Cavalier would have enjoyed it any more than I do today.
The fact that King Charles II was not a fan of tobacco there's definitely an irony to his mug being on the tin and what grandpa King James I wrote in his "Counterblaste to Tobacco" is well known
‘A custome loathsome to the eye, hatefull to the nose, harmefull to the braine, dangerous to the lungs, and in the blacke stinking fume thereof, neerest resembling the horrible Stigian smoake of the pit that is bottomlesse.’ etc.
Yes, all the Tanga Amboseli meers (and not just that brand) from the '70s that I've seen have that pre-smoked look:-
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Doesn't go into the pre-smoked look but offers other info on your African meer pipes and the company that made them:-
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Snap (or close), young man, except my example is from the late '70s:-
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He could always do something similar to what a previous owner did to this early 17th cent portion - mount it with a silver or gold coloured band, add attractive stem and hey presto a thoroughly smokable pipe is reborn:-
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