Carrying on from Volksjager's MkI this one turned up today. A WW1 MkI that was refurbished in 1937/38 with the MkI liner, MkI lining securing nut & bolt, & MkII chin strap lugs. It also has the stainless steel rim.
Painted inside with smooth khaki green, outside khaki gritty matt. The shell is stamped HS 462 ( Hadfields Ltd Jan'1916-19) the liner is dated 1937 & made by HELMETS Ltd. For me this is the helmet of the BEF & Dunkirk in 1939/40 as most of the pictures show this helmet being worn.
It's a bit rusty & worn but an extremely hard one to find.