On Sat, 14 Sep 2013 14:41:59 -0400, "Victor Manta"
sharpened a crayon and wrote:

"Victor Manta" wrote in message
...
How would you describe the condition of this S/S? How would you grade its
quality?

http://www.artonstamps.org/topicals/...sheet-face.pdf
http://www.artonstamps.org/topicals/...sheet-back.pdf

Would someone also explain what causes such flows.

TIA.

Note about the scans:
The gray band on the top of the image of the back is a shadow that doesn't
really appear on the S/S. The same applies to the gray shadows that appear
on the indentations (saliencies?) on both faces and certainly highlight
(by amplifying) the flaws.

Please read: Would someone also explain what causes such flaws.

VM
angle of the light trqaverse in the scanner vs the slight cupping of
the item and the reflectivity of the paper or gum.

If you use a 'thick' card, such as heavy poster paper, preferably
black, 99% of it should disappear. Also add a book to 'flatten', if
your scanner doesn't have enough pressure by the cover 'pad'.

Better scanning will also result if you 'standardise' by adding a
small strip of 100+ 'white' with a 'black' cut from a good mount or
sales card. {NOT the 103 cards - that's not 'black'!}

Scanners are only as good as the operator.