Agfa Gevatone Contone film; How do I use it?

[ibcrewin]

I found a box and a half of Agfa Gevatone Contone Film. From googling here and there it looks like it's a type of reproduction film. I'm guessing for making copies of prints. I also know that I can develop it in HC 110 1:7 or 1:4, for 5min) depending if I want negatives or positives.

What I don't know is exposure time, which is the emusion side..maybe it doesn't matter? Maybe I should use this stuff for 8x10 pinhole stuff? Sell it? use it? it's really old.

Does anyone know how to use this stuff? Your advice is appreciated!