Is there a definitive guide to Enfield magazine markings ?

[RobSmith]

I've been sitting on one for awhile now that was picked up by a friend of mine at a gun show a few years ago. Currently fits the No1Mk3 but appears to have been initially manufactured for an earlier varient and then modified. Has the old C-type magazine spring which I had never seen before, now have I seen one since. One of the markings I can't seem to be able to positively decipher looks like (smaller then sign, small case o, larger then sign).

Any ideas ?

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[RobSmith]

I finally have the mag in hand now so here is a full description of it and it's markings :

Underneath the Floorplate is a broad arrow and EFD.

C-shaped spring doesn't have any marking on it.

Stamped on the spine on the back of the mag body is (from top to bottom) :

Crown over DGE
Unidentified marking (now that I have it in front of my it looks more like a pair of wings or something stamped vertically with a wide O stamped on top of it).
Broad arrow over what looks like either a B or an 8 stamped horizontally
EFD.

The mag body itself has a small hole at it's lowest point (water drainage hole I guess ?).

On the front of the mag body at the very bottow is a narrow vertical "strip" that appears to be something that was ground off at some point in time ten the body was refinished. There a scratch on whatever that is/was that reveals a sort of golden color, possibly brass.

I'd really like to have a definitive answer on that one as I have been told various things, but none of the research I did myself seem to match this thing 100%.

[RJW NZ]

you could try the various sites listed on enfield resource.com under markings, I don't remember any on magazines but there was a wide range of british markings on several sites, perhaps its in there someplace,