That's a biggin'! A buddy on here asked me what brand or year it was and to tell you the truth, I do not know for sure. I asked some "professionals" and they weren't sure either, but it may be marked inside the door(s). The possible makers given were Ruleta and Horni, both old manufacturers.
It's a cool one but too heavy and too far away (shipping) for me unfortunately. Great old signal though.