International Video Corporation flourished from about 1967 into the late 1980s. IVC manufactured dozens of models of VTRs, cameras, film chains, switchers and other video equipment for the low end broadcast and high end industrial markets.
The IVC 825 is a basic 1" reel to reel record/play VTR with a capstan servo.
The IVC 850 is an IVC 825 with the addition of an electronic editor.
The IVC 860 is very similar to the IVC 850, is a 1" reel to reel color editor, but was able to perform both assemble and insert edits.