I don’t collect officers badges so am not best placed to comment, however when it comes to higher end fakery I always checkout Wharton Militaria.
Many of their repro pagri, NCO and officer’s badges have been given a bit more attention to detail with respect to the finish, fixings, voiding and fretwork.
As you can see they have a ‘nice’
well made unmarked silvered GMGB
http://www.whartonmilitaria.co.uk/de...s&item=BBG0109 . Would I buy it? No. The backplate looks like it was made yesterday.
This is the level of their Officer quality fakes and whilst the die used is Martin Marsh the finish shows the ends that they can and do go to:
http://www.whartonmilitaria.co.uk/de...&item=BBAC0002
http://www.whartonmilitaria.co.uk/de...&item=BBAC0031
http://www.whartonmilitaria.co.uk/de...&item=BBAC0032
http://www.whartonmilitaria.co.uk/de...&item=BBAC0013
With regards to your badge personally I do not like the enamel work it looks very matt in the picture and not the quality I’d expect. Of course this could be a repair or replacement.