PR China Error Buy In Big Lot On Ebay

PR CHINA 1952 Labour day, error in colour, I dont find this in any specialized china catalog and auction catalog. I buy and find in one big mix world wide lot on ebay for 10 US dollar.Stamp is mint LH.

I think maybe faded from exposure to light???

Doubt about it because on the light stamp is not goes dark and stamp is mint, no used and not on the letter and sun.

Mint stamps can be sun faded. It could have been placed in a dealer card and displayed in a sunny shop window for years. The fact that it is not used has nothing to do with the potential for sun fading.

The color of the upper right corner is noticeably darker, and transitions downward to the left. This suggests effects of light or chemicals rather than an improperly mixed ink color.

Maybe scanner is incorrectly shows the shadow but the stamp has a uniform color over the entire surface.

As for the sun, makes that change color are certain types of paper, or which are provided with phosphorus. Then, the chemical changes in the form of erosion or gradual changing color., Which is visible to the naked eye.
This brand was made on plain thick paper so that was in the sun and the laws of physics and chemistry would not get this reddish color.

red, purple, orange all are greatly susceptible to fading from light exposure. paper type really does not play into this (to any great extent) just the ultra rays exposed to. Even bright incandescent lighting will fade any color having a red in its base.

But that this is not the case, the mystery is solved, new knowledge of the Chinese certifier that the red stamp registered is not extremly rare, there is but in small quantities. It will be soon registered in Scott and Michel catalog.

Postage stamps is the most sensitive red color, and the chemical, reaction becomes yellow and even gold, but yellow color stamp can never turn in red.

Rafa - are you saying that the darker reddish stamp on the right is the color error, not the lighter color stamp on the left? If so, you may be correct, and should send the darker right-side stamp in for a certificate.

Yes, left stamp is original and right stamp is colour error

SC# PRC 140 orange brown. I viewed this pair at 200% and think the right view is the orange brown color with the left view a faded orange leaving brown highlights. Looking at the bottom of the pair I see distinctive fade on the left view causing the script to be almost unreadable while the right view is sharp. MHO but that is what I see.

I also think it's a faded stamp (graduated fading is quite evident), but Rafa is saying that left stamp is the color as issued and the right stamp is the color error. I think the opposite is true. Here's another image of the stamp found on the net:

Jenny2U , please look in catalog, see what wright for colour then wright on forum.

The postage stamp that you set the example of a faded brand.

Michel catalog number 145 (braunrot)Germany , left stamp the original color, right stamp red color changed.

also look on ebay original colour

http://www.ebay.com/itm/PRC-138-40-...em43e14a412b

http://www.ebay.com/itm/PRC-China-1...em4aef73621d

http://www.ebay.com/itm/CHINA-PRC-S...em51c41c339a

Jen: Are you suggesting that the Right stamp is faded of the orange inking leaving the brown inking more dominate, which would have Rafa thinking there was a mis-inking error at printing?? I still opinion that one of these is a changling due to light exposure (maybe both) and certainly based on the Scott Catalog & ebay references. I don't see any mention of such a significant inking error mentioned in the Scott and now I am wondering if any of the more astute Forum Asian collectors (possibly with Asian reference material) could determine if this is a changling or significant inking snafu??

eligies, unless I'm misunderstanding, Rafa is saying that the left stamp in the scan is the correct color as issued and the right stamp is the color error. I agree with you that the left stamp shows clear signs of fading. The stamp color is listed in Scott as "orange brown".

Hopefully someone will be able to clear this up.