Infinity Black Widow

greetings. I have had the Black Widow for a few years and was looking to find out if I have the original aluminum arm or the subsequent carbon fiber (GF) version.
Is there an easy way to tell?


It has been a couple of years since I owned one, perhaps 25 years, but I think if you just look closely and you don't see any strands running the length of the arm then you have an aluminum tube. The fiber runs down the shaft like a graphite golf shaft.

My best guess. you can always check with audiopile.