sc.-20 or sc.-33 ??

Hi, I have a Great Britton stamp that was given to my daughter from her
Great Grand Dad . He is no longer with us and she was told two different
sc. numbers. I looked online but the corner letters are different. Can
anybody help her ?
I put the stamp on a web page that is below.

Jerry


http://community.webtv.net/awoodbutc...oodWorkingPage




http://community.webtv.net/awoodbutcher/Stamp

On Jun 13, 11:20*pm, (Jerry - OHIO) wrote:
*Hi, I have a Great Britton stamp that was given to my daughter from her
Great Grand Dad . He is no longer with us and she was told two different
sc. numbers. I looked online but the corner letters are different. Can
anybody help her ?
I put the stamp on a web page that is below.

Jerry

http://community.webtv.net/awoodbutc...oodWorkingPage

http://community.webtv.net/awoodbutcher/Stamp

Jerry--go to the local library and borrow a Scott Catalog with
countries that include the letter G. Under Great Britain you will
find several 1 pence reddish stamps with the same design.(Scott design
A1). The letters in the corners denote the position of each stamp in
a sheet, so they will be different in each position. Scott also
illustrates the watermark on each catalog number. (To check for
watermarks, place the stamp face-down on a dark surface. The
watermark will show up as a dark design against the lighter background
of the paper color. If it doesn't show up, use a dark dish or tray
and put a drop of lighter fluid--NOT BUTANE--on the back of the
stamp.)

It's difficult to guess colors from a computer monitor, so I won't try
to determine what color the paper is, but some of the catalog numbers
are on white paper and some on bluish paper. Between paper color and
watermark, you probably can narrow the number of options down
considerably. There also are differences in the number of perforation
holes per 20 mm, but that you can ignore unless it becomes important.

Stan