Letts, Son and Company 1870 - 1885
Name given to the company after Thomas was joined in the family business by his son, Charles, and together they raised capital for expansion into a limited company in 1870, trading as 'Letts, Son & Co.' The public company lost direction and went into liquidation in 1885. Charles reformed the company privately as Charles Letts & Co., trading profitably for the next century. In 2001, Letts acquired the Filofax Group.