Short answer Yes!
You can see a hint of orange in the centre of the stamp.
I'm assuming this affects the value negatively?
It probably does bring the price down, but to me it would add to the stamp somewhat - you now have an unintentional colour variation!!
I believe this stamp would be considered as having oxidized ink. It could be such of the orange, or of the vermillion, or even of the rose carmine. It is not easy to determine the colour in which the stamp was printed once the ink oxidizes. Rumour has it, I have been told, that hydrogen peroxide will reverse the oxidation, but I cannot attest to this or recommend trying it.
I couldn't stand it, so I soaked it for 10 minutes in HP, and it was clearly orange before oxidization.
No offence to the purists, but I thought it was much more interesting the way it was shown first!!
There are literally dozens of ways to change stamps to appear as an oddity or rarity. Read the following from the APS website user guides and realize that the odds are that a "special" stamp is the result of someones experimentation. That is not the case of the stamp in question that is just normally oxidized - I probably have 100 of them stashed away in a glassine to use hydrogen peroxide on someday, maybe. Mod note - if this is too long to be a citation please delete
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Preservation and Care of Philatelic Materials
Subsidiary Page 11
Chemically Altered Stamps
A great deal of hesitation occurred when writing this section, but today so many stamps that have
been chemically altered are being offered as genuine that the author decided to go into the
subject briefly. The experts are not fooled by these fakes. The philatelist should not be fooled
either. Do not be deceived by "rare" shades, missing colors and the like that do not have an
expertizing certificate.
Dozens of chemicals are available that will remove one color element and leave the other colors
almost intact. In cases where the chemical might remove two colors, the fakers will mask the one
color or area with paraffin wax. After "doctoring" the stamp chemically, they remove the wax
with a hot iron and blotting paper. Many chemicals that remove color do not disturb the gum.
This fact makes the fake more believable to many wood-be purchasers.
To show how easy it is to alter a stamp chemically, we will give you two simple examples.
Purists will argue that we should not mention these. On the other hand, a knowledgeable
philatelist cannot easily be deceived. Immersion in acetone or contact with acetone fumes will
change a green stamp to blue, an orange stamp to yellow, and, in many cases, brown will change
to black. Thirty seconds in boiling alcohol will remove the red coloring from some stamps. If, for
whatever reason, boiling alcohol is required, the alcohol should be heated with an electrical heat
source, never a flame.
These are just two examples of the dozens of ways that stamps can be altered. Chemicals, even
water, will change a stamp. The stamp will lose its brightness, and other colors will change
shades to a greater or lesser degree. Even the paper, when viewed under a microscope, will look
different.
Have you ever been offered a stamp that is narrower or shorter than it is normally? A sodium
hydroxide solution will shrink the paper fibers. Sodium hydroxide will usually not affect the ink
color to any noticeable degree. Again, it is best that the stamp variety offered come with a
certificate of authenticity. If you must experiment with the effect that sodium hydroxide can have
on stamps, use an inexpensive stamp and exercise intense caution with sodium hydroxide as it is
a very caustic solution which can cause blindness if splashed into the eye.
Harvey....I was just curious to see what original color it was. Far from being a "purist". It's not exactly an inverted Jenny.
I don't see this color in Unitrade Cat. There is an orange. Could this be a morphed orange?
re: Color of the Canada Registered Stamp
Short answer Yes!
You can see a hint of orange in the centre of the stamp.
re: Color of the Canada Registered Stamp
I'm assuming this affects the value negatively?
re: Color of the Canada Registered Stamp
It probably does bring the price down, but to me it would add to the stamp somewhat - you now have an unintentional colour variation!!
re: Color of the Canada Registered Stamp
I believe this stamp would be considered as having oxidized ink. It could be such of the orange, or of the vermillion, or even of the rose carmine. It is not easy to determine the colour in which the stamp was printed once the ink oxidizes. Rumour has it, I have been told, that hydrogen peroxide will reverse the oxidation, but I cannot attest to this or recommend trying it.
re: Color of the Canada Registered Stamp
I couldn't stand it, so I soaked it for 10 minutes in HP, and it was clearly orange before oxidization.
re: Color of the Canada Registered Stamp
No offence to the purists, but I thought it was much more interesting the way it was shown first!!
re: Color of the Canada Registered Stamp
There are literally dozens of ways to change stamps to appear as an oddity or rarity. Read the following from the APS website user guides and realize that the odds are that a "special" stamp is the result of someones experimentation. That is not the case of the stamp in question that is just normally oxidized - I probably have 100 of them stashed away in a glassine to use hydrogen peroxide on someday, maybe. Mod note - if this is too long to be a citation please delete
-----------------------------------------------------------------------------------------------
Preservation and Care of Philatelic Materials
Subsidiary Page 11
Chemically Altered Stamps
A great deal of hesitation occurred when writing this section, but today so many stamps that have
been chemically altered are being offered as genuine that the author decided to go into the
subject briefly. The experts are not fooled by these fakes. The philatelist should not be fooled
either. Do not be deceived by "rare" shades, missing colors and the like that do not have an
expertizing certificate.
Dozens of chemicals are available that will remove one color element and leave the other colors
almost intact. In cases where the chemical might remove two colors, the fakers will mask the one
color or area with paraffin wax. After "doctoring" the stamp chemically, they remove the wax
with a hot iron and blotting paper. Many chemicals that remove color do not disturb the gum.
This fact makes the fake more believable to many wood-be purchasers.
To show how easy it is to alter a stamp chemically, we will give you two simple examples.
Purists will argue that we should not mention these. On the other hand, a knowledgeable
philatelist cannot easily be deceived. Immersion in acetone or contact with acetone fumes will
change a green stamp to blue, an orange stamp to yellow, and, in many cases, brown will change
to black. Thirty seconds in boiling alcohol will remove the red coloring from some stamps. If, for
whatever reason, boiling alcohol is required, the alcohol should be heated with an electrical heat
source, never a flame.
These are just two examples of the dozens of ways that stamps can be altered. Chemicals, even
water, will change a stamp. The stamp will lose its brightness, and other colors will change
shades to a greater or lesser degree. Even the paper, when viewed under a microscope, will look
different.
Have you ever been offered a stamp that is narrower or shorter than it is normally? A sodium
hydroxide solution will shrink the paper fibers. Sodium hydroxide will usually not affect the ink
color to any noticeable degree. Again, it is best that the stamp variety offered come with a
certificate of authenticity. If you must experiment with the effect that sodium hydroxide can have
on stamps, use an inexpensive stamp and exercise intense caution with sodium hydroxide as it is
a very caustic solution which can cause blindness if splashed into the eye.
re: Color of the Canada Registered Stamp
Harvey....I was just curious to see what original color it was. Far from being a "purist". It's not exactly an inverted Jenny.