Help identify these LE mags

[Strangeday]

I found two extra enfeild mags on a shelf. They dont fit my JC some i"m wondering what they are for....any ideas?

 

[Beater]

left one is a #1 mag. one on the right is a #4 mag. it should fit the JC aswell

 

[millwright]

Hey, does the one on the right have a double catch on the back?Maybe my eyes are playing tricks again.At the bottom of the catch it looks like there is another protrusion.

 

[tiriaq]

Magazine on the left is an earlier SMLE pattern with separate front feed lip; needs to be pushed back into place. Madazine on right should fit a No. 5, as mentionned.

 

[green]

Mag on the left is a SMLE #3 mag or #2. Should be a number stamped on rear. SMLE trigger guards are noched to clear the lip.