 During the twenties Martin Press saw a vast expansion in capital.It is speculated that Harry, through links with gangster Frank Costello, moved alcohol, now illegal during the prohibition, along with legitimate Canadian pulp paper across the border.By 1923 Harry had managed his most important sales deal of his life, acquiring the rights for Martin Press to print six million subscription leaflets for Hearst magazines such as "Cosmopolitan" and "Good Housekeeping".