EAN-130000000000024   EAN-13 barcode 0000000000024
UPC-A000000000024   UPC-A barcode 000000000024
UPC-E00000204   UPC-E barcode 00000204
Product NameRiker Ryker Specimen Mount Chipboard Display Case - 12 X 8 X 2 Inches - Case Of 10
LanguageEnglish
CategoryHardware
Amazon.comA Buy on Amazon ~ B001QS7YX6
Price Used12.95 US Dollars    (curriencies)
Weight208 ounces    (convert)
Features
  • Sturdy, Versatile and Attractive
  • Improve sales
  • Organize your collection
  • Discount/Wholesale priced for the dealer or serious collector
  • Case of 10
Long DescriptionCase of 10 black leatherette paper covered cardboard boxes with glass tops and locking pins, filled with white poly fill. Used by collectors and dealers to display insects, pins, medals, badges, buttons, jewelry, awards, coins, cards, pens, military or scouting items, handicrafts or any thing else. A very inexpensive way to showcase your items.
Created01-20-2013 5:50:06pm
Modified09-27-2017 9:51:03pm
MD50cb58a15e9f5ca49e8716fe74d172f01
SHA256dc65ad3162128cf38d73d7e4b26de0cfeec5c9566711d8c9756a95b307d556e0
Search Googleby EAN or by Title
Query Time0.0006130

ISBN stands for International Standard Book Number. Originally this was a 10 digit number known as ISBN-10, but has been replaced with a 13 digit version known as ISBN-13 (aka EAN-13) to better fit in with the industry standard product numbering system.

The ISBN system offers a unique numbering system for books and publications of various types. ISBN offers 9 identification digits for each book or publication and one check digit. ISBN-13 expands the available number set by doubling the available numbers. You might think that the extra three digits would more than double the available numbers but ISBN is limited within the EAN-13 numbering system and will always start with 978 or 979 as the first three digits, leaving only 9 more digits for the actual identification digits and again the last digit is the check digit.

Any ISBN-10 number can be converted to ISBN-13. Any ISBN-13 number that starts with 978 can be converted back to ISBN-10. ISBN-13 numbers that start with 979 cannot be converted to ISBN-10.

The conversion process from ISBN-10 to ISBN-13 is a rather simple one. Start with the first 9 digits of the ISBN-10 number, place 978 in front and calculate the new check digit using the standard EAN check digit calculation.

If you want to calculate the check digit for ISBN-10, that is done using a MOD-11 calculation that is very different than the EAN check digit process.

ISBN-1-5905-9332-4

Look at the number above and below the barcode. You will see that except for the last digit in the ISBN number, all of the digits exist in the 13 digit version shown under the barcode right after the 978 and just before the new check digit of 5.

Now you can see how easy it is to convert between ISBN-10 and ISBN-13.

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