solenoid with start button

[Merc Cruzer]

The car is a stock 1953 Mercury with a 6 volt , positive ground system.

Okay, why doesn't it work?! I too wanted to have the starter solenoid with the button.

I have now bought two (thinking that the original one was faulty, and you all know, if you buy an electrical part, it is not returnable. The first one I bought from NAPA (ST53), the second one I bought from O'Reilly's (SS558). When I called Standard, I was assured both would work. My understanding is that these should swap out directly.

I have attached pictures of the original factory Ford solenoid, installed (with one screw, the reason it is at an angle) and working, in the car. I have placed one of the new ones below it. I installed the new solenoids, with the same wire configuration, as on the factory solenoid above it. When you get in the car, put the shiftier in neutral, turn on the ignition switch and hit the starter button, you get absolutely nothing but silence.

The factory solenoid is currently in the car and works perfectly.

What am I doing wrong?

Thank you in advance, for your input.