#11 Strip Of 4 - Thoughts On Value?

You're welcome, Julie. You're research is well done.

I've only used peroxide on the U.S. 1851-57 3-cent imperforates. Caution is warranted when working with other stamps, especially non-U.S.

Merry Christmas to you, Julie, and all! Happy stamping!

I noticed a lot of C1's that could benefit from this treatment as well. It is the same red/orange and has a tendency to toning darker and two-tone stamps.

Thanks for all the information, everyone, and in particular the plating information, ClassicCoins!

You're welcome, jimjamtwo.

OMG. Use of peroxide is to be discouraged.

I have a good friend who is a color specialist that developed a technique to use a sweat box where peroxide vapors to turn a stamp back to it's original color.

Simply soaking stamp in liquid peroxide etches the ink away.

The color on intaglio printings is retained above the surface of the paper. Run your finger across the surface of an untreated stamp and you can feel the ridges. In treating with liquid peroxide the ink is reduced down to the level of the paper. The color is ruined, and so is the stamp.

Here is a link to a 2014 post on peroxide vapors and the removal of oxidation, with results.


https://goscf.com/t/40403&SearchTerms=oxidation

I've only used peroxide on Three Cent 1851-57 stamps. Have liked the results.
Of course I'll be sad if in 10 years these stamps have become albino...