Two Stamps Missing Gold: Bogus Or Jackpot?

Have 2 stamps that look like they are missing the Gold

any ideas (real, faked, altered??)
Images attached

Thanks
Marios

I have these 1979 Xmas stamps in unused gutter pairs. You can see from the traffic light dots that the gold (dot 5 in the box) have been printed.
Used single stamps with missing gold will always be suspect as there is no way of knowing how the gold came to be missing. Weather, sun, storage factors, chemicals or chemical vapors, or even the soaking process can take some or all the gold off. They are not fakes as they do have missing gold...only the process of how they became so is virtually impossible to say.


You would need the stamps to be examined by more than one expert (not just someone on another forum as has happened ) for them to be even remotely considered to be a genuine missing gold. I believe most experts would not commit themselves to a definite opinion that they are missing gold stamps.

Yeah, kinda what I figured as I checked several catalogs & no one mentions them.

OH well,, good conversation pieces

Marios

I'm pretty sure it's a color changeling. Weren't the Queen's head printed in gold OVER the background color? On the genuine color omitted errors I've seen for other GB stamps, the Queen's head is completely missing and only the stamp background color is there. On your stamp, the darkened image is still there rather than the lavender background, suggesting it is a color changeling.