Aeritalia gyros

I've got a couple Aeritalia electric gyros, attitude and dg. They appear to be new old stock. I tried powering them up but either had the wiring wrong (I was guessing it was the same as an RC Allen) or they are dead.

I've never heard of these. Are they even worth messing with?

Thinking they were Cessna parts.
I just sent a vacuum DG from the 80's off to have OH'd.

The company I used is Naylors Instrument Services. 877-374-8160 in Florida
They said 425.00 was normal OH.
The website says they buy cores.

Their website has a listing of brands and model #s they can OH....
Might check your equipment against their list.
A starting place for info.