ExcelMark Scanned Self Inking Rubber Stamp - Red Ink (42A1539WEB-R)

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These are useful tools for identifying whether documents are made from secure paper or UV safeguards are genuine. Transmitted light

The enhancement of scans through alteration of saturation and contrast is also a great help in identifying shades. Help for by-eye assessment then! But price on request and the style of description suggests this is not going to be appropriate cost wise. In theory I assume you just replace the LEDs in a flatbed scanner with UV wavelength equivalents. Am sure that must be doable - ha ha ha - this from someone who has never managed to successfully get an LiDE scanner working again after popping the glass in my attempts to fix them! I find this very useful for the German stamps where there is little need for UV help BUT having several copies of certified stamps is beneficial as some older proofings are obviously wrong . This brings up the expertise angle and expertise cannot be wholly eliminated via technology.. computer, 1 scanner, 1 stamp, 1 colour software, as long as they stay the same then all will be good on your computer.Shining light through paper (e.g. using light from above, a lamp, or a torch) is a useful way to view features such as watermarks, and also any damage to paper. Document scanners If your hardware has been calibrated and you tell me those results, and my hardware has also been calibrated and I examine a stamp and get very close results, then it would be worth while me getting my stamp expertised. Without both systems being calibrated, any close match is much less meaningful. All of this will be only for your own personal usage unless we all start sending our certified stamps to each other and scan and pass on to the next member Hope you guys find it as useful as we have! We've been doing this a long time and have used everything from DSLR to 1200DPI scanners over the last 20ish years, and this one is the best thus far. Position the camera head around 4 inches above the subject and shoot. That's how we do it. If it's a big item, then stand it up a lot taller. The camera head also swivels 90 degrees so for wide or long shots, you can pivot it.

Also what about scanning of colour charts on same scan as stamps? This is interesting but does not account for the paper differences (density of colour modules in paper). I do this with some success using proofed stamps on same scan as unknowns and comparing the shades after manipulation, although there seems to be many mistakes in old proofings of German stamps). Standard handheld magnifying glasses can be useful when examining documents to see if they are counterfeit (e.g., looking at print quality), or if they have been forged (e.g., damage around photographs and images). Ultraviolet (UV) light sources So my feeling on the best approach is simply colour calibrated scans to the ANSI standard then a visual comparison of the scans side-by-side on a decent monitor combined with experience. From that you either assign a shade (for a simple Green / Yellow Green example), or in the case of difficult issues - and Australia KGV 1d Heads are the ultimate in difficult shade issue - then an onscreen visual comparison of colour calibrated scans can give a good indication of when it might be worth (or more often not worth) sending a stamp off for a certificate.Secure identity documents are presented as proof of identity, nationality, status within the United Kingdom, and for employment or renting accommodation. https://www.hipstamp.com/forums/discussion/4251/franklin-washington-taming-the-beast-part-3-watermarks-and-detection#latest

No, I'm not, you've definitely totally missed the point of this entire post. It was about colour calibrating your scanner. Going beyond that I've made reference to then using colour calibrated scans of multiple stamps to make visual judgements. Similar (although not the same) visual judgements you make by eye with multiple stamps infront of you in real life. Document verification is crucial in ensuring that the documents presented are both genuine and presented by the rightful holder. The colours you can print on a home printer are a subset of pantone colours as CMYK inks cannot produce them all. As is the case of most things there are other systems in use and patents involved. Pantone colours are considered by many to be the industry standard for matching colours to be printed. So for example if a designer in Woolloomooloo chooses CMS17-2031 or whatever; a printhouse in Abu Dhabi can do the work without receiving a colour sample direct from the designer. Many countries flags are defined using pantone colours.Ken I have no problem with this idea, your stamp (certified) gives you a base colour (#ec2a65) scanned on your scanner 1, any other stamp scanned on that scanner you will be able to work with.

While this is true it makes me think I have not explained the rationale behind this at all well If you have a certified stamp in-front of you and stamp of interest in-front of you then surely you would make a real-life comparison using a good natural north light? Taking a scan may help as well, but yes - colour calibration of your scanner isn't needed if the stamps are always going to be physically sitting together on your desk!! I'm looking to make colour calibrated scans work as well as possible for instances where real-life comparison is NOT possible. Note: Non-barcoded Christmas themed and commemorative stamps will still be valid for postage past the deadline and cannot be swapped. What will happen if I try to use an old stamp past the deadline? Iain if you have a certified stamp IE a pink stamp and you think you have another scan both stamps at the same time on any scanner with any monitor with any scanner setting on any windows program, if they look the same when all is done you have another pink again as I said before if the scanner or any of the other bit dies the 2nd stamp is still a pink just as the 1st. What is frustrating is that showing scans here is never successful due to variations in monitors etc., so that some element of truth from the scanners perspective has to be given.

The upshot of all this is: if you scan a KGV 1d rose pink stamp that has been expertised, sample a specific area and get (for example) #ec2a65, then the next time you're wondering if a particular stamp is rose pink, if you repeat the exercise using the same settings and get a close comparison (for example) #eb2e68, then it's probably worth your getting that stamp expertised too.