Ludwig Brenner, who had reached London from Pforzheim, Germany before the first world war and had established his business in Charterhouse Street , near Hatton Garden , the centre of the London jewellery trade, registers his patent on an improved propelling pencil mechanism. His patent expands that of Sampson Mordan to allow the pencil to hold 12 three inch leads thus making a yard of lead length. For this new product he establishes The Yard-O-Led Pencil Company.
1934