Vintage Motorhead Silver Heavy Metal Ring

Vintage Motorhead heavy metal ring - literally and figuratively. Likely made by G&S in the late 1980's or early 1990's, but the engraved interior is difficult to make out (see photos) so I can't say for certain. Silver finish (most likely silver plated over bronze, but again, I don't know for certain) is wearing off in places. Needs a good cleaning. Not stamped sterling or 925. Size is approx. 8.5" (see photos). Death metal / heavy metal / biker/ rocker / goth / skull vibe.