Removing Hinge Remnants From Revenues?

What is the consensus on removing hinge remnants from revenue stamps?
Are there any stamps with fugitive inks I should be aware of?
I have a bottle of "Super Safe" fluid that says it's safe but I'd like to be sure before I use it.
Is there ever a point when it's just part of the stamp and should be left alone?

Any answers would be much appreciated.

Brian.

There are only three reasons I can think of to NOT remove a hinge;
1) Is if its holding one part of the stamp to the other.
2) Is if the stamp still has the original gum.
3) Is if the stamp has a heavy manual cancellation.

I don't know of any stamp where the printing will run, manual cancellations are another matter. You just may want to insure that you don't soak the ones with manual cancellations too long.

JMO, I don't use or like hinges on used stamps and generally remove them using the above criteria.

Art

Yes, they are part of the Dated Documentaries AKA Dated Red's. They are listed in Scott's as "Sensitive Ink." Used "sensitive Ink" types look like the ink has blead. Mint ones have a slightly metalic flake look to them. It's kind of hard to describe! But, you will know it when you see it! This applies to the overprinted date only. The Stamp itself is normal. A few do have a water soluable varnish on them. Those are part of the "Statue of commerce" Series. These are also noted in Scott's.
As for any others the answer is no. You may find a fugitive cancel every now and then but they are very few and far between.
In other words no worries! Soak away.

Thanks for the info guys!

Any stamp / revenue with purple or magenta dye,
leave well alone
The GB queen victoria revenues especially, they will fade to nothing.

The early Netherlands Indies postage stamps are legendary
leave those well alone.

QV revenue


Netherland Indies

Thank for the bonus info on the purple inks rod222.
I wonder if that applies to the U.S. revenues that use that color as well?
As a painter I know how fugitive the old purple/magenta pigments are ( alizarin, rose madder etc)
Anyone know of a reference about inks and dyes used on stamps, U.S. revenues in particular?

Sorry, not au fait with US revenues,
I'd imagine a similar result though.
Not seen any literature regarding stamp inks, ever.