Here you can see the sole of the #5.
The photos above give you a better look at the neglected #5. They also clearly show the depth adjuster knob and the mouth.
A view of the #5 without the iron assembly.
In the photo above you can see the frog, the lever cap screw, the lateral adjusting lever and another view of the depth adjuster knob.
Here we see the iron assembly.
The lever cap.
In the upper of the two photos above we see the cap iron/iron assembly. And in the lower photo we see the lever cap that holds the iron/cap iron assembly securely to the frog in use.