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EAN-139780007319909   EAN-13 barcode 9780007319909
Product Name13 Little Blue Envelopes
CategoryBook / Magazine / Publication
Short DescriptionPaperback
Amazon.comA Buy on Amazon ~ 0007319908
SKUGOR001739608
Price New6.14 US Dollars    (curriencies)
Price Used0.79 US Dollars    (curriencies)
Width5.2 inches    (convert)
Height1.1 inches    (convert)
Length7.8 inches    (convert)
Weight11.2 ounces    (convert)
AuthorMaureen Johnson
Page Count317
BindingPaperback
Published07/01/2009
FeaturesHarper Collins Childrens Books
Long DescriptionEverything about Ginny will change this summer, and it's all because of 13 little blue envelopes...Perfect summer read from Queen of Teen 2012! Ginny, aged 17, is left 13 little blue envelopes by her free-spirited young Aunt Peg. Little does she know just how much they will change her life...* Inside envelope No 1 is money and instructions to buy a plane ticket. * Inside envelope No 2 are directions to a specific London flat * Inside envelope No 3 a note to Ginny says: Find a starving artist. * And because of envelope No 4 Ginny and a man called Keith go to Scotland together, with somewhat disastrous - though utterly romantic - results.
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Created11-16-2012 10:14:20pm
Modified04-30-2020 2:48:44pm
MD5ba14d2c607786f396a4f01615d840794
SHA2561c3980b2dca854746f4872490513793c38a2e707319614ce086f9a4302f17813
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Article of interest

This symbology was developed by the MSI Data Corporation and is based on the Plessey Code symbology. MSI is most often used in warehouses and inventory control.

This is a continuous non-self-checking symbology meaning it has no predetermined length and there is no validation built into the barcode itself. If you want to validate the data stored in the barcode, you would need to use a check digit. Mod 10 is the most common check digit used with MSI but you can also use mod 1010 or mod 1110. It is allowed but generally not a good idea to omit the check digit all together.

There is a start marker which is represented by three binary digits 110 (where 1 is black and 0 is white). There is also a stop marker which is represented by four binary digits 1001. The remaining markers represent the numeric digits 0-9 (no text or special characters) and each digit is represented by twelve binary digits. Below is a table that describes all of the possible markers. The start and stop markers are the main difference between MSI and Plessey. That and the fact that MSI only covers digits 0-9. You can read these stripes as a binary values where 110 is binary 1 and 100 is binary 0. The stop marker simply has an extra bit on the end.

Character Stripe Bits Binary Value
START 110 1
0 100100100100 0000
1 100100100110 0001
2 100100110100 0010
3 100100110110 0011
4 100110100100 0100
5 100110100110 0101
6 100110110100 0110
7 100110110110 0111
8  110100100100 1000
9  110100100110 1001
STOP 1001 0 + extra stripe

 To create a graphical barcode using this process, you can simply string together a series of 1 and 0 graphic images once you have calculated what your barcode should look like using the table shown above. You can view the source code of this page if you want to see how we created the example shown below.

Code [start]375[stop]
Bits: 110 100100110110 100110110110 100110100110 1001
Graphic:

This is just an example of one way to perform the graphic encoding. It is often easier to just draw the lines instead of tacking together individual images. If you would like to create free MSI barcodes, please visit our barcode generator page. You can save the images you make and use them as needed.

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