I compared it to the Ishibashi one (for CIJ) I got from Doug (Top: Ishibashi, Bottom: GPR)

The colors in the pics should be quite representative as I shot them in not too bright daylight.
It's hue is kind of copper-ish, I think that's much closer to the original color, but I can only judge from pictures as I don't have an original.
The overall shape is quite pleasing, I aligned it to an AVRI guard and I couldn't spot a difference. I haven't aligned it to my '63 guard yet,
as I didn't feel like tearing the guitar apart last night. I test-fitted a pair of replacement pup covers from GPR, and it was a very tight fit,
but I'm not sure if it's the covers a tad too wide or the guard contour too small. But nothing that could be handled with a file in 20 mins.
Thickness is pleasing: It's almost twice the Ishibashi's, about 1.5mm which translates to about the original spec of 0.062" (thanks Doug)!

The macro function on my digicam is crap, but you get the idea. Oh, and it is NOT shot with nitro.
Cheers,
Michael