428 LAA Bty RA Edinburgh (Queens Edinburgh Royal Scots)

Gentlemen,

at the back of a WW2 picture representing RA officers, I have the following dscription: officers of 428 LAA Bty RA Edinburgh (Queens Edinburgh Royal Scots). The picture is dated August 1944 and was taken in Hythe, Kent.

My problem is that I can't find any trace of any 428 LAA Bty RA Edinburgh anywhere. Does anybody have info about that battery?? That would be of great help.

Thank you very very much.
Cheers
Phil