Geiger Counter for sale

Saw this cool Geiger counter at a vintage "shop" in Michigan on our earlier summer vacation. The shop had tons of stuff, which was actually laid out nicely across several garages and sheds at some guys house.

We thought that it would be difficult to buy this, pack it up and take it home on the plane in the current security environment. I don't even know if Geiger counters contain radioactive materials themselves as a control or to make them work. I see some Googling or Wikipedia research for some future fun.