Is This A Candidate 28A Or B?

I buyed this some days ago on an auction. It was listed as unused withouth gum and scott 42 with can't be because the two projections on 42 are cutted top and bottom. The price was 200 usd but withouth cerfication.
My opinion it could be 28a indian red or 28 b bright red brown?
the stamp looks unused and very good condition but withouth gum.

Offering opinions based on a scan is dangerous, but I think that your stamp is a Scott 28 - Red Brown, Type I. It may have a filled thin or other repair at the top right as viewed from the back - note the white adhesion. It may have a cancel removed due to the darkness around the edges or just be slightly stained. Current Scott Catalogue value for a no gum Scott 28 is $15,000 and as a used stamp $1,050. It may be worth having an expertizer or a good professional in Europe take a look at your stamp.

It also has a perf added to the bottom. Sixth perf from the left as one looks at the reverse image.

Looks like a Type I #28 red brown to me, (but I don't know what "Indian red" looks like). Definitely one I would consider having expertised. Even with the flaws, it is a nice stamp.

As wtcrowe noted, this is one of the hardest stamps to differentiate shades. Scans aside, the shade we see varies depending on lighting type and amount. Expertizing is the likely best thing to do, but this stamp should be more carefully checked that there is no cancel, always a problem in this era. Otherwise, the cost may not be justifiable.

It needs to be looked at under a UV light.

thanks for your assesements.

I agree that maybe some repair was done reperforated.
And it's not excludet that the cancel was removed. but the stamp looks to fresh to me, that this is a used stamp but never say no.

@bud indian red has the colour of this stamp (siegel auctions).

stamphunter1
I am no USA stamp expert...And I dont want to look negative, but I noticed a couple of oddities....I put it through one of my Image manipulation software and noticed a couple of things about your stamp.

The image on the left ""Dont worry why it is different colours"" brings out what looks like a blob repair...The image on the right shows what looks like a crease to the left of the blob.

Just saying..Robert

Hi wert thanks for the input. intersting stuff.
But I don't see nothing that look like a crease on the front of the stamp?

stamphunter1

Maybe not on the front..Could be some thing as simple as finger nail mark..Not likely, but you never know.

Robert

That line could be natural to the paper as well; the paper is very thin.

revcollector makes a good point stamphunter1..You have the stamp in hand..Can you see a line/crease on the back..?

Robert

Has the stamp been dipped in watermark fluid?

From left to right are 1856-7 Red Brown, 1858 Red Brown, 1858 Bright Red Brown and 1858 Indian Red:

Good stuff, @rogdcam. Thanks!

Agree with Bud, good stuff. Thanks.