Is This Colour Range Normal

i found these in what I was sorting and the colour change is so dramatic I mistook it for a different stamp at first, this is on 2 types of stamps but they are the same colour then I found more the stamp on the right in each of the photos is normal colour

The normal color is orange. The brown copies are severely oxidized which is common in these issues. Hydrogen peroxide will restore the original color. If you decide to restore them be sure to rinse in water to remove the hydrogen peroxide from the stamps.

The Austin Texas is a very nice stamp.
Centering and condition appear very nice.
Great eye appeal.

Are you going to try to restore the orange color?
If so, post some pics of the results!

To be completely honest I haven't got a clue how to restore stamps I know russ said about hydrogen peroxide but I'm not sure exactly how strong a mix or anything else or if the precancil will be damaged but I would like some more info though

Razersedge
First, there is mixed thought about what is conservation, restoration and alteration. Some people feel that any actions taken on stamps are alterations. I feel that actions taken on restoration of organic inks are restoration and are good and ethical practices since the stamp is not altered from its original printed state. Many feel that these practices are alterations and are unethical. Everyone should make their own call.
The process is simple, either immerse the stamp in hydrogen peroxide or apply it to the surface with a cotton swab. Allow a couple of minutes for the ink to de-oxidize (you will see the color restore). Rinse by immersing in water. This process will not affect the precancel markings.

I agree with Russ on this topic.

If the process brings the stamp back to it`s original status, then it was not altered. However, if the process did make a change and it was not back to it`s normal colour, then it was altered. My opinion anyway.

Chimo

Bujutsu

Thanks I will give it a go on one of the other stamps and see what the changes are and see how it turns out

I don't see a problem with soaking or wiping a stamp.

I do see a problem with changing or adding perfs, removing cancels, adding new gum, etc...
Those are very invasive acts and are usually meant to decieve.
If a soak brings color back to original, seems harmless to me.

This brings me to an obvious question though...
Does this discoloration of the stamp actually hurt anything?
Is it just something that happens without consequence, or does it accelerate the stamp 'rotting' away?

I have never seen any permanent damage from oxidation but I live in a more semi-arid area. I only restore oxidized stamps that are going into my collection. Spares and dupes are left as is.

I just recently attempted the hydrogen peroxide treatment. It worked beautifully. The standard store-bought kind works just fine. I had not rinsed my stamp, so thanks for letting me know about that Russ.

I'm really sold on the hydrogen peroxide method after reading more than a few threads with good testimonials. I also wholeheartedly agree with Ratio411- as long as your not doing anything to deceive eg. re-perforating, re-gumming, etc.. and only preserving them by soaking in soapy water or using peroxide then I think it's perfectly legitimate! I do understand the purists ideals though but to me it's just overkill. If I see a grimy stamp that I can help with a quick dip then I'm going to do it!

How will the Peroxide work on Toning ?