Help with identifying british/canadian paratrooper helmet

[69Stinger]

I recently picked up this British/Canadian paratrooper helmet and would like to identify it. I'm not sure if the large 54 on the headband is the date. The other stampings read "A.B.L - X8 52". The oxidation on the chinstrap hardware matches the rings on the helmet so the chinstrap appears original, although I don't know what era it's from. Any help is greatly appreciated.

http://img687.imageshack.us/img687/9372/brrit3.jpg

http://img812.imageshack.us/img812/7420/brrit.jpg

http://img594.imageshack.us/img594/9781/brrit2.jpg

[SMP]

It's a post-war Belgian made para helmet. ABL is the Belgian army. 52 is the year. 54 is the size in cm. ( though someone has hand-written 53 on the liner )

[69Stinger]

Thank you sir!