MA usually indicates that the item is of Australian manufacture. The initials 'MA' are found on the Australian-made Vickers guns. I don't know about other Australian equipment - as I only had an interest in the Vickers when I collected these guns. But I would think that I am probably correct.
Books published to date... 'Belfast Diaries: A Gunner In Northern Ireland'... 'A Tough Nut To Crack - Andersonstown'... 'An Accrington Pal: The Diaries of Pte Jack Smallshaw, September 1914 To March 1919'.
At a guess it's a Australian Pattern 1907 Bayonet
Lawrance Ordnance - Manufacturer's Marks on the Lithgow Pattern 1907 Bayonet
MA 1 is a Pattern Mark for Late-1920s - 1953
Last edited by Australia; 08-17-2014 at 11:11 AM.
Australia hit the nail on the head! Also a nice reference site link posted.
Thanks to all for your prompt responses~
The unit belongs to my Bro i law . He picked the Bayonet up at a estate auction some time ago ~ a very nice score I feel ~