![]() There are a couple of "standards" when it comes to barcode layout - I'm not sure which ones NGC/PCGS use. ![]() That is not to say that I have not seen incorrect scans from barcodes, but the occurence is far less than typing a long series of numbers by hand - not to mention that it takes a lot less time to zap one than typing it in by hand. Using a barcode and scanner just keeps you from having to type in all those numbers manually, and introducing the chance of human error during data entry. Even some scratching on the outside of the slab shouldn't make a big diff, the scanners today are pretty forgiving.Ģ - I don't know for 100% sure on the Slab Code, but in most cases the bar code is just a representation of a number, so I'm guessing that it is simply the assigned certification number that is printed on the slab. ![]() There should be no problem hitting the barcode through the plastic on the slabs, and since they are protected in there, you shouldn't run into any smearing or foreign matter on the code. I have not used one for inventory of coins or specifically slabs, but I worked with them a good bit as a computer technician at a Mack Trucks assembly plant where they were used for inventory control, so I can answer your questions generally.ġ - They work great, as long as you keep the lens clean and the printed barcode is clear.
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