it is an Orthophonic Victrola
I have several, some have the exponential horns others don't. I believe you have the "GRANADA" Model (also known as the VV 4-4) which was introduced in the fist wave of Orthophonic Victrolas on November 2nd, 1925 "Victor Day" - Quite a bit of hype and hubub accompanied the announcement of the machines - The others were the top of the line CREDENZA another mid line, short lived model called the COLONY and the lowest price model the CONSOLETTE. All used the Orthophonic sound box and were designed to play records recorded using the new Electrically recorded records Victor introduced mid 1925.
78,608 were manufactured with the spring wound motor.19,860 were equipped with the new Induction Disc electric motor which ran on AC.
These machines, even the lower end models, have fantastic sound especially when the sound boxes are restored and clean Victor Orthophonic records are played.
There is an excellent book titled "Look for the Dog" by Robert Baumbach, which is the source of the above information.
Enjoy it!
Alan