Dear JP - I am sorry that you did not have more response. However, it is fairly unusual
to see a Gallantry medal not in a group.
The DSC ; the MC and the DFC were introduced in WW1 to give a wider range of awards.
The suspender Bar could vary - but, the top inner bar with pin, was - I think - the same for all of them.
I don't have a DFC at present - however, these pictures show the top pin for the MC. You
should be able to order one from Spinks - in London.
http://gmic.co.uk/uploads/monthly_03_2012/post-6209-0-31336600-1333113082.jpgCLICK TO ENLARGE