Interesting Wardens Helmet

[garys39]

Picked this up from ebay just before Christmas, only now have I had time to have a closer look. W to front and rear, both different style fonts, these have been masked off and the helmet repainted black again, above the front W is A21, but this is under the repaint. The helmet is covered in signatures/positions, some readable, some to faint to read, there is a Head Warden and a Deputy Head, and signatures followed by the following references, D Group, Post I 26 & I 24, B3.
Would letters to the front and rear put this helmet in the London area ? and what would the significance of A21 above the W have been ? (the painted texture of the W & A21 are the same).

[tinlid]

Nice reissue, makes them more interesting. Not seen signatures like that before, but just adds to it.

[Jerry B]

I have seen signed headgear items previously, I have two in my collection, both as a parting gift to a member leaving a unit, though not seen it on a helmet before but I assume it is for the same, a fond goodbye to a comrade.