How many movies have Frederick Ko Vert and Robert Israel collaborated on?

They have worked on 1 movie together! Their first movie together was The Wizard of Oz (1925) and was their highest rated movie together. They have not worked together since The Wizard of Oz (1925).

The Wizard of Oz (1925)

Role
Phantom of the Basket
Crew
Original Music Composer
Crew
Costume Design
Crew
Conductor
Crew
Music Arranger