The printing-house of Peter Momma was transferred to his son Wilhelm Momma by the 31 of December 1768. Wilhelm Momma, who had until then been employed in the Bank of Sweden, left his position in the bank and continued the printing business until some time in 1771, when he ran away to escape his creditors. He never used his name in the imprint. That which was left of the printing-house was taken over by Johan Pfeiffer, who probably already had been employed by Peter Momma for several years. In spite of the imprint he used, printing of the official publications was transferred by November 1770 to the former “Grefingska tryckeriet”, run by Peter Momma.