No gum as issued.

I describe and photograph all my stamps as well as I can, but all my stamps are sold "as seen", "uncertified" and "ungraded". 
What you see is what you get. 
If a buyer manages to spot a fault under their electron microscope or other sophisticated equipment which I do not have, that is the buyer's problem, not mine. 
If you have any doubts, do not bid. 
If you seek absolute perfection, then only buy stamps that are certified and graded, and be prepared to pay the full market price as well. 
If you want to have the thrill of 0.99c auctions and maybe get a bargain, then bid. This is what eBay was supposed to be about.

EU Bidders please note: IOSS rules state that lots under 150 Euros should not be charged customs or import duty if VAT is paid. Two countries, namely Italy and Austria, however, routinely ignore this rule, and I have just had a case in France. Other EU countries have been ok thus far.
This is a very sad situation, but please take the possibility that you may be charged import duty into account when bidding. I am not liable to pay import/customs duty. I believe the 150 Euro rule will be changing in 2025. I hope the situation doesn't become even worse!