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Posts posted by dprince1138
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Perhaps do a split next time and send half to one vendor and half to another and see what sort of comparative differences there are, if any.
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Of course, this would not be an easy task. With the expansive penny library and penny questions, I may go forward with designing a preliminary search engine, not including this functionality.
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I have no doubt that you do not understand.
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http://ec2-13-58-222-16.us-east-2.compute.amazonaws.com/wiki/Home
While the following sites do not particularly provide the atomic level of information as in your example, I thought that it may be useful to provide links to other sources for coin information, particularly for die varieties.
Dave's Bust Half Dollar
http://maibockaddict.com/Seated Liberty Half Dollars
http://www.lsccweb.org/BillBugertBooks/Bugert-Vol-I-SF.pdfSeated Liberty Dimes
https://www.seateddimevarieties.com/Newman Numismatic Portal (all coins)
https://nnp.wustl.edu/encyclopedia/catalog?catalogId=1https://www.pcgs.com/coinfacts (all coins, to display a particular coin w/wo die variety, I enter the coin in google, then click on the appropriate PCGS link).
Of course, https://www.ngccoin.com/variety-plus/united-states/ (all coins)
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Pretty penny.
Excluding initial membership fee, grading a coin can run $45-$60, depending on options. For myself, I am about to submit coins for the first time, but I feel it is necessary to prove the value of the coin, which I am hoping to to sell for $250 or more.
Although, some may do for collection purposes.
Amazon sells very nice coin containers.
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Of course, I should have indicated "financial transaction", rather than "money".
I incorporate an enormous amount of data validation, data verification, database integrity, error tracking and recovery in my applications. I recall one of my professors lecturing about the necessity of accuracy and that 30% of code should be applied to that goal. If I do create a Die Variety search engine, you will see what I am referring to.
The NGC online invoice application is an extremely poor example of proper programming. Not only the obvious data errors, but the design of the form as well.
Example A is of bad data. Example B is of a bad record. There is a function path error as well.
- ldhair, Newenglandrarities and EagleRJO
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Speaking of developing a search engine interface. The NGC invoice application had a number of issues that should be unacceptable in a production environment, especially associated with money.
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This was my job for 30 years. Building databases and data mining tools and applications.
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I could expand it to include the multiple die variety sources, with reference images. As stated, I use 5 different sources, all with different formating and organization.
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Very interesting. I could build a search engine, in which multlple match consideratiions can be selected, for example; Using check boxes or drop downs, selecting "cracked", "column twelve", "tilted "D"". Also, perhaps implementing the google image matching object
The search engine could combine the different variety sources, as well as an option provided to search a selected source.
It would not be difficult to build.
Doing a brief search on Column twelve with a die crack located WRPM-058 as a possible match.
I could distribute the search engine as a stand alone executable or as an install app (wider object platform).
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Off centers seem to be more valuable the further the off center, partificularly when off the planchet. I seem to recall that 50% offcenter nickels were selling for about $20.
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FYI - coin die varieties
in Newbie Coin Collecting Questions
Posted · Edited by dprince1138
Perhaps I could offer my developmental skills and knowledge to NGC, for a competitive fee\salary.
I have participated in dozens of public facing websites and applications. This form would have been utterly rejected by the testing and roll out staff. The issues in this form should have been addressed during the initial unit testing phase.