I am fairly certain your egg comes from the USA as that is where they are commonly marked there rather than on the base itself and the date is relatively early.
Unfortunately the picture (#3) has too much reflection from the irridescent surface. I suggest you try and take the photo a little differently. If you take the picture at a shallower angle you can probably cause the signature itself to appear darker and the irridescence to show lighter. Another way is to lightly rub talc on the signature so it is filled with the talc and then take the photo so the background is relatively dark. Please try again it looks a really nice weight.