Good morning Kingsman
I don't claim to be any kind of expert on glengarry badges, but I have some and seen lots of others and your post appears to be of a good badge.
In respect of the copper lugs, Yes I agree that the held opinion is that they should have brass lugs. HOWEVER, as it happens, at yesterdays Bosley's auction there was a Glengarry badge to the 68th (DLI).
It was from The Hugh King Collection and had copper lugs and was described in the catalogue with copper lugs.
Are Bosleys going to sell a copy.?????????
I had a look at it to compare it to mine as the one I have has copper lugs and it appears the same; so perhaps the belief that brass lugs are a necessity may need to be re considered.
I did notice that some of the other Hugh King Glengarry badges also had copper lugs.
Hope this helps......but it's probably made it more confusing.
Regards
Brian