Columbia HG (Home Grand); AB (Macdonald)
The Columbia HG was  introduced in 1899 for $150 and  was designed to play the larger concert cylinders.  The Columbia AB was introduced in 1901 to play either regular cylinders or the larger concert cylinders.  The  5" cylinders were supposed to produce a louder sound than the standard brown wax cylinders available at the time.
                                  Columbia HG                                                  

Columbia AB