Hi Nigel, I'm not an expert like some of the more senior members, but here are a few threads that have come up in the past on this sort of thing.
It's not fake per se, it's just not part of Hitler's flatware and cutlery-by a long straw. I seem to remember that this design crops up regularly as 'AH' cutlery but is in fact from an Austrian hotel in the Tyrol region called the 'Adler Hof'. Below is the correct design by Bruckmann that the Fuhrer had made exclusively for him.
'I do not think we can hope for any better thing now.
We shall stick it out to the end, but we are getting weaker of course, and the end cannot be far.
It seems a pity, but I do not think I can write more. R. SCOTT.
Last Entry - For God's sake look after our people.'
In memory of Capt. Robert Falcon Scott, Edward Wilson, Henry Bowers, Lawrence Oates and Edgar Evans. South Pole Expedition, 30th March 1912.
As big ned states, Bruckmann made the personal sets (there were several) and this item doesn't have the Bruckmann mark. That's a good link too, thanks to big ned for that.