A Strange Mark On A 24?

Just received my newest purchase. It has a very different marking at the lower right of the stamp and it's not a crack or a curl. It is more rectangular than anything with a line thru the middle and a curved left edge. I haven't scanned it yet but will in the next few days. Is it a one off, perhaps. My question: What caused it?

Some sort of gripper mark? I'm just guessing, I don't have a clue.

Art

Stamp looks to have been repaired in the LR with
part of the design drawn in....or to look
like a cancel.
Paper is much whiter in the LR corner.
Upon receipt.....dip it....Im sure that is it.

No repairs, no tears and nothing drawn in. This is a scan at 1200 dpi. In addition to the rectangle, there appears to be some hairline marks barely visiable under a 10x lupe just below the strange marking. Whatever it is, it's not in the books. I'm still open to suggestions.

Art

Maybe some other ink-laden item adhered to the bottom right corner at some point in time, ink face down (e.g., another stamp) and upon separation left an ink impression?

Did you dip it???

And dipped

It's one of 4R8-10R8, not sure which. I agree that the stamp has a repair at lower right. I would say you need to dip it again.

It also appears to me that there is a repair at the lower right corner (paper appears irregular as if another stamp/piece has been attached beneath the subject stamp).

Looking at the perforations in the scan with the black background it seems clear that the lowest two perforations on the right side and the right three perforations in the bottom margin look artificial, round, regular with straight sharp perforation tips. I would conclude that the right corner was added with the extraneous blue rectangle. Dipping the stamp should show the extent of the faux corner unless the entire stamp was rebacked. In that case, fluid will absorb slowly and the stamp will remain a light color much longer than a sound stamp.

Clark

I agree that the lower right corner looks strange, but why would anyone go to so much trouble repairing a Sc #24? Just curious.

You dont start (learn) repair jobs on thousand dollars items....
You start (learn) on less expensive.

maybe it was "painted" in or a doodle? Possible "Griper crack"? I's pretty Neat anyway!

artlaunier...It definitely looks like same colour ink as the stamp as you can see on the arrows of my picture....I changed the colours to see if the "flaw" colour changed and it did, meaning the rectangle is the same ink colour as the stamp ink colour...How it got there is a mystery..

Art,

Next time you send me something, include this item. I will gladly tell you what I think it is (no charge). But remind me of the "no charge" by including a copy of this message. The fact that it changes the exact same color is interesting......

Art,
Can you give us a really close look at just that corner? Nice and big?

I looks like it was repaired with the corner of another stamp that had a different cancellation. Looks like a little white gap/tear through the letter N in cents and if you look up the right side about the 2nd or 3rd tooth up looks a bit "dodgy" to me but then again what do I know? lol