Help With Identifying Great Britian 6 Pence Stamp

Hello is there anyone who can indentify this stamp? Having trouble finding a color match, the two stamps it could be are dull purple or purple, I believe. It looks like the cancelation is from 1908 or 1909 so unless I am wrong it shouldn't be a somerset house printing. The color it matches up too on my color chart is mauve. Thanks for any info. Here is a photo of the stamp.

Hello !
I just looked in an old Scott catalogue and I saw that there's only one year possible : 1902

It's probably #135, because the color is dull violet.
Or #135a, which is red violet, or #135b which is violet, or #135c, which is black violet.

I'll do more research and I'll be back.

CS

Hmmmm pretty hard, I looked images of every different types of this stamp, and every single stamp can have a different shade of purple

Thanks for the quick response. I did not know there was other color variations then the two I mentioned earlier.

Soaking will also affect the colours of purple stamps of this period.

Does this stamp look like its been soaked? How can you tell?

No problem, Paid !

Because it is no longer on the envelope it was attached to.

You are correct. The cancellation is for 1909, so it must be a De La Rue stamp. It, very likely, is a 1906 chalk-surfaced paper issue.

These stamps had frequent fiscal use. Consequently, double fugitive purple ink was used to print them.




As rogdcam answered, being cancelled and off-paper is a clear clue.
In addition, the colours have run so badly (another indication it will have been the 1906 issue) that it almost turned the stamp into one printed on purple paper.




Scott and classic GB?!




As for shades. It is impossible to tell from an online picture. It is impossible to tell from a stamp with badly run colours.
Stanley Gibbons (SG) is the norm for GB shades. It uses a reference book to determine the colours and they are named as they would be named at the time. SG recognises shade bands. Within those bands, there are differences.

There was one dealer who studied the shades, started to recognise even more shades within the bands, created a more fragmented listing with some very rare shades, issued certificates and then prices for those rare new shades went through the roof.

Thanks for the informations, NSK !
The Scott catalogue that I used was an old classic edition one. Nothing really special !

I would have expected Scott to list the chalk-surfaced variety. But it may list it under the 1902 issue.

I have noticed from posts here that Scott uses other colour names than SG. In particular, purple is used when the pigment was lilac. Therefore, care should be taken with a cross reference, as Scott and SG may both list a purple colour variety but refer to different colours.

Thanks NSK, again I have learned something new. I get my information on stamps through Stampworld online and they don't mention a 1906 variety. Hope you have a nice day.

@Paid, that is a very basic catalogue. It puts the perf. 15x14 that were issued in 1911 in the same listing as all that is 1902. There are five different issues of the 6d stamp, not counting 'shades.'