I recently bought a pair of Juliets described as plasma finish but they don't look like my other plasmas; I'd appreciate some help identifying what I got. The finish is more matte and the hue not as silvery but still lighter than x-metal. Are these maybe titanium instead of plasma? I read a post by the x-man about how early generations were sand cast and rougher compared to later lost wax castings. These also have hints of left flashing so my first thought would be 1st gen. But, they have no serial number. Warranty frames? Refinished frames? Here's a pic; they're the ones with the VR28 lenses sitting between a 4th gen plasma and a 4th gen x-metal: I also noticed a little bit of green corrosion near one of the orbital screwheads, if that means anything: Thanks for the help.