Does This Stamp Have Two Colors Of Tagging Or Did Someone Use A Marker That Tags Red?

Does this stamp have two colors of tagging or did someone use a marker that tags like airmail red? If so then why? Is there such a marker back then? The other pink color is only on the stamps not the cover.

It is extremely difficult for me to see your pictures, but the post office uses an orange colored ink to place barcodes on envelopes that looks orange under short wave ultra violet. Maybe some of that got on the stamps?

Peter

These orange or red glowing marks are a vertical line on the far right stamp bottom, 2 horizontal lines on stamp above it and another line on the far left stamp.

So I retook some picture with short and long wave Versalume.

It looks like some luminescent ink to me.

To build on angore's post ... very typical of postage meter ink, which is UV-reactive.

Have you ever seen this ink get placed on stamps? the marks look more like from a marker. And the ink is not on the cover or the other 17 cent stamp. it Looks like this ink was applied before the stamps was put on the cover. look at the perfs openings... no glowing ink there also. If this was applied like you were saying wouldn't it be on the cover also as I mentioned?

Just a guess, but the shape and orientation (generally horizontal/vertical) of the marks looks just like what I do when I'm highlighting a printed memo/handout. I'm pretty sure I'm not the only manager who does that. The difference might be that I usually put a hard plastic sheet beneath the paper I'm highlighting. Otherwise, you might get some bleedthrough to whatever is underneath -- other papers, books... and... maybe some mail that had been tossed on my desk earlier?

Like I said, just a guess. But when I don't have the plastic sheet and use scratch paper as a buffer sheet, I sometimes see similar faint marks on the scratch paper, depending on how new the highlighter is or how slow I'm moving the highlighter.

Regardless of the cause, it is not a production freak, but something that happened after the point of sale.

Hi John, What confirms this?

Common sense - especially on a used stamp. Go get a 1970's meter (or a pink marker if that is what you think it might be) and put it next to your stamp and experiment with your UV lamp.

John is correct. It's not unusual to see stray luminescent ink marks on general machine-processed covers. Whether stray blotches from the red bar codes, or meter imprints... The marks could have been put on the stamps before they were affixed to the cover. I often have blocks of postage laying around my desktop.

Thanks Guys! I think you've satisfied my curiosity!