If I may suggest, why go to all that trouble ? Instead why not just use a code that has already been invented and been in use for decades by the entire numismatic community. It's called the KM code and is the numbering system used in the Krause catalogs.
I use a program called Exact Change. It is one of the few out there that has an extensive list of world coins. You don't need to be a Phd to use it. It's easy to add coins that may not be in the program itself. The best $ I spent on my collection. I have tried spreadsheets but they get SO large and complicated I spent more time on it than I did anything else. Hope this helps!
1. It seems as if quite a few coins use the same KM number. Typing "KM#366" into google gives me: [h=2]NORWAY 2 Kroner KM# 366 1907[/h]KM#366 EGYPT 5 PIASTRES SILVER COIN KM#366 Australia, 1 dollar 2. It doesn't take into consideration multiple coins as well.
:thumb:GDJMSP has a very good suggestion we have all used ! Unless you want to Buy Software that cost $50.00 to $150.00 plus each year you have to buy a update. I would stick KM#/Krause catalog # its Fast + free:thumb: http://www.ehow.com/how_7651962_number-store-coins.html
Isn't that a Led Zeppelin album? I actually agree with you on this one, Detecto. The Krause catalog has been so inconsistently reworked since its debut that the numbers are entirely meaningless, from an organizational standpoint. The citations are still important - it's just not very convenient for searching. I'd advise you to develop a four digit numeric code for each county based on the letters of the alphabet. A=01, B=02, C=03 ... Australia = 0121, India = 0914, Nicaragua = 1409, etc. I know there will be a few thorny ones, like Austria/Austrialia. In that case I usually increase the second letter's value by one.
Or make it like a VIN number with even more information encoded in it ... You could start with continent 1-6/7 (if including Antarctica), then country's 4 letter code, then year (standardized to a single calendar system), after this you could go with some more info like grade, weight, diameter, primary metal and fineness ... just think aloud here
Of course! I thought he just needed a way to organize by country. I usually use Country/Region/City/Issuer/Series/Denomination/Date. Not all are used for every coin, but they are consistent within a given country. So
Well, they do change their numbers from time to time. Would still prefer that over reinventing the wheel. Of course there are other catalogs, but people in the US and many other countries will deal with the Krause #. Country codes, well, for modern (especially 21c) coins, the 2-char ISO code would be fine. Could be tricky with older ones ... Christian
Ran into an issue tonight. Australia and Austria both use the same 4 letters. So I'm using Kangaroo or KANG for Australia. I'm using numismaster for inventory. So far I love it. Now I can pick up any coin , type my "code" into "refine" and like that song from the 90's "Whoomp there it is"! So my code works like this. FRAN34CN FRAN=France 34= Coin Number CN= Copper Nickel On numismaster I can have groups too, so far I have it like this. World Coins 1300-1899 World Coins 1900+ US Coins 1600-1899 US Coins 1900+ Exonumia Medals
Wouldn't 3 letter country codes be better? AUS = Australia AUT = Austria FRA = France Etc. It works for the Olympics.
Two-character codes work just fine as well. See each and every country specific domain name for example. Australia is AU, Austria is AT. But if one picks CANG as the "code" for Australia ... if you leave the G out, you'll get CAN which would be Canada. Of course you could then replace CAN by, say, MAP for maple. Besides, all this does not take older countries into account that ceased to exist long before ISO codes and domain names were made, hehe. Christian
Nice !!! I have always used the free 1 that comes with my Coin World Subscription 1st was a Book you would get Now it has all Coins US+World on the website.its &@$19.95 a year.i guess you can tell how long I been with CW. book was too many years ago. kinda looks like this too.