The three different variations Marx 418 bell signals made.

Here are the three different variations of the Marx 418 bell signals made by Marx.
Made from the 1940's through the 1950's

The three different variations of the Marx 418 bell signals are .
1 : chrome base and chrome bell.
2: black base and chrome bell
3: black base and aluminum bell.

the decal can be different in shade of red due to fading.
The chrome base and chrome bell is the early one and then the aluminum is the last variation made in the mid 1950's

I think I paid about $18.00 each.
in my opinion The 418 with the chrome bell sound better than the aluminum bell signal.
I use them just for display. but they do work.