From Chapter 8:
In the fashionable world the snuff-box was all-powerful. The Prince Regent was devoted to snuff, but disdained tobacco. He had a "cellar of snuff," which after his death was sold, said John Bull, August 15, 1830, "to a well-known purveyor, for £400." Lord Petersham, famous among dandies, made a wonderful collection of snuffs and snuff-boxes, and was curious in his choice of a box to carry. Gronow relates that once when a light Sèvres snuff-box which Lord Petersham was using, was admired, the noble owner replied, with a gentle lisp—"Yes, it is a nice summer box—but would certainly be inappropriate for winter wear!" The well-known purveyor who bought the Prince Regent's cellar of snuff, and who bought also Lord Petersham's stock, was the Fribourg of Fribourg and Treyer, whose well-known old-fashioned shop at the top of the Haymarket, with a bow-window on each side of the door, still gives an eighteenth-century flavour to that thoroughfare. All the dandies of the period were connoisseurs of snuff, and imitated the royal mirror of fashion in their devotion to the scented powder. Young Charles Stanhope wrote to his brother on November 5, 1812—"I have learnt to take snuff among other fashionable acquirements, a custom which, of course, you have learnt and will be able to keep me in countenance." But no dandies or young men of fashion smoked. Tobacco, save in the disguise of snuff, was tabooed.

From Chapter 15:
Before the end of the seventeenth century, however, the signs were ceasing to have any necessary association with the trade carried on under them, and tobacconists are found with shop-signs which had no reference in any way to tobacco. For instance, to take a few examples from the late Mr. Hilton Price's lists of "Signs of Old London" from Cheapside and adjacent streets, in 1695 John Arundell, tobacconist, was at the "White Horse," Wood Street; in the same year J. Mumford, tobacconist, was at the "Faulcon," Laurence Lane; in 1699 Mr. Brutton, tobacconist, was to be found at the "Three Crowns," under the Royal Exchange; in 1702 Richard Bronas, tobacconist, was at the "Horse Shoe," Bread Street; and in 1766 Mr. Hoppie, of the "Oil Jar: Old Change, Watling Street End," advertised that he "sold a newly invented phosphorus powder for lighting pipes quickly in about half a minute. Ask for a Bottle of Thunder Powder."

Again, in Fleet Street, Mr. Townsend, tobacconist, traded in 1672 at the "Three Golden Balls," near St. Dunstan's Church; while at the end of Fetter Lane, a few years later, John Newland, tobacconist, was to be found at the "King's Head."