Ry,
you are quite right! Having dug out my boxes of R.E. badges, the GvR and EviiR officers dress badges appear to be Gilt. The first S&G Example being GviR! I also dug out my GvR OSDs and I'm now pretty sure the die is female (?) and with the space between the the upper loops of the G & R and the inner edge of the garter strap, it's almost certainly for a c.1916 All Gm Economy badge?
Thanks for making me do my homework, it turns outs to be even more interesting than just a desk paperweight, considering my interest in E.I. badges!
Best regards
Andy