Anodised Seaforth Highlanders

[dubaiguy]

In Chris Marsh's 'No Bull' work, the Seaforth badge illustrated has three fixing lugs arranged in a triangle. Two at the top of the antlers and one in the middle of the scroll.

Is the arrangement of four lugs in a square as shown, just a makers variation? I've come across a couple of 4 lugged versions, but not a three lugged version... yet.

(Just to be clear I'm talking about the badge with vertical lines on the Cuidich'n Righ scroll and without the thistle centre piece).
Thanks
Mark