4959B Vintage Rose How To Tell If It Is Tagging Omitted Or Counterfeit?

Title says it all.

4959 Vintage Rose how to tell if it is Tagging omitted 4959b or counterfeit?

Ran some sheets that I have under a UV light and this stood out.
Simple question if anyone could provide guidance.
Thanks

As I recall the die cuts on the fakes don't look right and the engraving looks wonky too. Break out a magnifier and have a close look.

As I recall, the counterfeit has a break the stem.

The serpentine looks nice and rounded [I'll add a close up - its under a harsh LED light so don't mind the color]
The flower part has a nice engraved feel and matte look
How do you mean about the break in the stem?

Since you have a full sheet, an easy way to tell the counterfeit on this one is for a misspelling on the reverse. Here is my copy of 4959CF1 with "news" misspelled as "new" --

https://www.linns.com/news/us-stamp...ed-stamp.htm

The stem is not one complete series of lines, but has a break in it, a white space between the upper part and the last quarter at the bottom.

Thanks,
Mine says "news" on the back. It has that break on the thin line near the serpentine.

I used your info and searched up some. If, for nothing else, this post might serve as ID help later.

I found one that was marked a counterfeit and it has a poor thin line on the stem.
I found one that had "new" on the back like the picture you provided (so, it's counterfeit, seller probably doesn't know) and it also had the poor thin line on the stem.

I found a couple presumed real that had the thin line of the stem broken at/near the serpentine and all also had a few small breaks along the curve but overall had a crisp appearance as opposed to the barley showing line on the counterfeits.

Notice the break in the thick line where the words stating "new" are. That's the break I am talking about.

What type of UV light are you using? The tagging on the Julia De Bugus is not showing currently.

That picture is under a standard GE black light and might be more related to my camera.
I found it is a quick way to spot tagging/absence by flipping album pages under it - it makes them stand out easily.
For single checking I have a Leuchtturm Doppel UV lampe with the 2 wavelength settings

Black light is long wave UV and doesn't work for tagging. It will work for paper varieties and for luminescent versus non-luminescent ink varieties. The tagging on this issue is very light and as such it can appear untagged. Using SW UV and 10x magnification can help one see the greenish taggant.

The image below was taken under SW UV to show the tagging. The left stamp came from a pane I got from the PO. You can see that it appears untagged. Closer examination reveals that it is lightly tagged. This is how they normally appear. The right stamp I bought from a dealer since I wanted a full pane to replace the one that had gotten used for postage. I hadn't looked at the tagging until now. I am assuming this is one of the counterfeit varieties. While it is tagged, it is overall tagged not prephosphor tagged. The printing is absolutely smooth and the paper is whiter on the counterfeit. This one has news spelled correctly, but the printing is larger as is the bar code. on back.

Thanks,
I am using the wrong UV light,
Good to know.
I switched to my short wave UV light, instead of the GE and there is the proper green tagging.

Note for later: Don't use a GE UV generic Blacklight for any tagging checking, it ends up with a misleading result.

Thank you everyone for the input and guidance

Davemamer, interesting post. Just a note, on your note - quote : Note for later: Don't use a GE UV generic Blacklight for any tagging checking, it ends up with a misleading result.

You definetly can use the longwave or blacklight tube for checking tagging, just not for tagging on US stamps. It is the the best one to determine most Canadian tagging though, but a few US printed issues require the SW to see them.

"but a few US printed issues require the SW to see them"

No - All!

Eyeonwall, to put it another same way. The longwave blacklight is the best to determine tagging on Canadian stamps, but a few Canadian issues printed in the US require SW to see them.