Please help identify this old tube gear

http://https//photos.app.goo.gl/3jdQU89NNsi3REv5A

Hello.
I picked this up a while but have never been able to reliable identify it’s origins. I would like to identify the transforms in hopes of reconfiguring it to a stereo setup.
Currently It is a bi-amp mono system believed to be from a 40’s/50’s organ. Someone said possibly from a Compton organ.

It sounds quite good even in it’s limited current configuration. I have a very cable tech that has checked it out throughly and gave it two thumbs up. The transformers are very hifi worther. He assured me It could be converted to a nice stereo system if I could find matching OPT’s. I like the look of the transformers and am only interested in the project if I can find matching OPT’s

Your suggestions, thought are all welcome.

Thanks