From Chapter 2:
The properly accomplished gallant not only professed to be curiously learned in pipes and tobacco, but his knowledge of prices and their fluctuations, of the apothecaries' and other shops where the herb was sold, and of the latest and most fashionable ways of inhaling and exhaling the smoke, was, like Mr. Weller's knowledge of London, "extensive and peculiar." It was knowledge of this kind that gained for a gallant reputation and respect by no means to be acquired by mere scholarship and learning.

From Chapter 5:
"Old English 'clays,'" says Mr. T.P. Cooper, "are exceedingly interesting, as most of them are branded with the maker's initials. Monograms and designs were stamped or moulded upon the bowls and on the stems, but more generally upon the spur or flat heel of the pipe. Many pipes display on the heels various forms of lines, hatched and milled, which were perhaps the earliest marks of identification adopted by the pipe-makers. In a careful examination of the monograms we are able to identify the makers of certain pipes found in quantities at various places, by reference to the freeman and burgess rolls and parish registers. During the latter half of the seventeenth century English pipes were presented by colonists in America to the Indians; they subsequently became valuable as objects of barter or part purchase value in exchange for land. In 1677 one hundred and twenty pipes and one hundred Jew's harps were given for a strip of country near Timber Creek, in New Jersey. William Penn, the founder of Pennsylvania, purchased a tract of land, and 300 pipes were included in the articles given in the exchange."