Harbuch AT103 transformers. What to do with these unusual pieces?

I've got an odd transformer, well several actually. 

Here's what I have from the manufacturer:
"The AT103 has no Specification Sheet, from what information I can find, this
device was a special made for the ABC 'Line Bridging Input transformer for
Type-2 Distribution Amp.
There are two transformers in one Mu-metal Can."

and

"AT-103 Line i/p 8ct:2ct 180Kct:11.25Kct (current o/p) A-4 can"

I don't really know what to make of this, any ideas?  Stereo DI or line balancer for a synth/laptop? or a colour box (step up/step down wired in series for colour)? or step up for turntable hifi nerds?

Thoughts?

Nobody?

Try putting it in the Magnetics sub-forum.