J.J.Reeb became Hoflieferant =gunmaker to the court of:
Prince Heinrich of Prussia, younger brother of Kaiser Wilhelm II, 1887
Crown Prince Wilhelm of Prussia, son of Wilhelm II, 1903
Prince Chlodwig of Hessia,1904
Duke Carl Eduard of Sachsen-Coburg-Gotha (and until 1917 also Duke of Albany, Earl of Clarence, Baronet Arklow and Prince of Great Britain and Ireland), 1904
After Johann Jakob Reeb's retirement in 1909 Philipp Reeb was appointed to Kronprinz Wilhelm.