Two versions of the US Mk 37 gun director. The first one is a plain director from early WWII. The second version is one with a radar dish that would been used late in the war.
Included are separate arms that can be printed and glued on. Or you can just glue a dowel through the director which will probably be more durable but not look as good.
No support is needed for printing. I did have some trouble printing the radar dish, 0.15 and 0.2mm layers worked, but 0.25mm didn't.