A few American glasshouses were quick to capitalize on the popularity of paperweights. Examples from the New England Glass Company and the Boston & Sandwich Glass Company in Massachusetts appeared in 1852, and production there continued through the 1870s. Letters, company invoices, and price lists confirm that these factories made substantial numbers of paperweights. They were frequently created by craftsmen who had been apprentices at Baccarat, Saint Louis, and Murano. These workers copied and revised floral patterns and latticed backgrounds that had been introduced by such French glasshouses as Saint Louis and Clichy. One New England weight features a lampworked bouquet of flowers, fruit, and foliage on a double-spiral white lattice ground.