Stamps On Gummed Side Errros

Hi, I am new on this forum, quick questions, have you ever heard about collector, which collecting Gummed errors only?
I am working on big. Collection, World stamps starting 1877,san marino, and allover the world til 1970.i couldn't catch way this was collected., but after some time started realising all of this stamps 100s,having same issue., they are. Printed on Gumed side., having no Gum. Or gum of both sides errors.? Is that ever possible.

If that is what you have, then, Yes, printed on the gum side is very collectible in many different countries. Better to show us a few scans, both front and back, to help us confirm. If taking a picture, try to take at an angle with some light to show us the gum better.

Hi, thank you for your answer, I had sent few pics, the stamps are exactly like you said, and I have checked them that way.
There's is loads more, but if you could confirm theses on first 2 pictures, it's mean, all of them are with same issues, NO Gum, or printed on Gummed side

Not sure if they has been downloaded, can't see from my side, please let me know if you can see any pics, if no I will try to be better, and download them one more time.
Thank you

Nothing shown. Please review this primer:

https://www.stampcommunity.org/tuto...g-images.asp

Hektor,
You cannot send or received emails within this board until you have 50 posts, so whatever you think you have sent did not acually happen, You wil have to post to a thread for anyone to see anything.
For posting here you will want jpg format and less than 300KB file size.

Just to be clear, we are looking for confirmed samples that are printed on the Gummed Side. We don't really care about No Gum, as those are usually just soaked stamps with no indication of a cancellation.

A Gummed Side stamp will show some type of sheen on the printed side, and no sheen on the other side. It is best compared with a normal stamp of the exact same issue, showing the sheen on the correct Gum Side, and no sheen on the printed side. Difficult to show easily with a picture. Good luck.

OK, so how I can upload this pic? I will try once again in one hour, when back home.
Yes I will post only mint pictures, also I have loads of stamps to compare, so I will try to send pics with 2 same Gummed side and not and normal stamp.
How about cancelled stamps, where you can see gum sgushed on reverse, stamps are nearly like rubber on front,
And what with stamps with gum on both sides?

Anybody wouldn't mind to help me, maybe sending me whatssup number, I could easy send those samples, and if possible upload them here.
Thanks

Hektor - if I can upload pictures, anyone can. Scan your stamp(s). Adjust the size on your computer or use the Image Optmizer here.

OK I compressed them, downloaded,posted. got message green message that. Pic has been posted

Not yet.

No, not. Yet#128514;

Getting that "green" indicator is not the end of the process. You need to browse to your picture location. Find that picture. Upload it to your current message. Preview to make sure it looks OK. Then post your message.