#2 is either a Rocket or a Parat. If you open the silo door to where the TTO (twist to open) knob is flush against the handle, you can compare the size of the knob. If the diameter of the know is larger than the handle it is a Rocket. If they are the same it is a Parat. The fact that it has the gap between the knob and handle makes it one of the two.
It's either a
1. Parat
2. Rocket
3. Aristocrat Junior
You can see it's of that family because when the doors are closed you have the gap between the handle and the tto knob.
If there's the diamond silo then it's a Parat or a Rocket. If it's an Aristocrat Junior, the base will be flat.
When you open the doors, if the tto knob is the same diameter as the handle then it's a Parat, if the knob is slightly bigger than the handle then it's a Rocket.......
Oops, just re read the whole post and noticed that AsylumGuido had told you most of that !!!