DEC VT30-H and VTV30-J, was VSV11

[shadoooo]

Hello,
given recent posts about Unibus graphic systems, I'm coming back with a
request:

was anyone some documentation about board sets VT30-H and VTV30-J?
They should be graphic systems as well, the former Unibus, the latter Qbus.
Definitely I think they aren't "regular" DEC products, maybe they were
developed by third parties, as the PCB realization and style is far from
DEC boards.
I think they are really hard to find parts, would like to try to do
something with it.

Thanks
Andrea