Just a Radar

Mark 8 Main Battery Fire Control Radar, this is what this little thing's name. Well, huge thing because it is a ship system.

Found a good site called NavSource, all those information can be found there.
http://www.navsource.org/

And i found this picture there.

I'm an engineer myself, and I always feel old school engineers are better than us, they don't have computer, they don't have CAD, but they still can do this.