Determining Die Doubling

Determining Die Doubling from Other Forms of Doubling > Introduction

Posted by Stella Admin at 22 January, 2004, 11:00 am - (0) Comment
Categories: Determining Die Doubling

Explaining the difference between die doubling (doubled dies, repunched dates, repunched mintmarks among others) and the more confusing forms of doubling can be very challenging and even more difficult for a novice to comprehend. Additionally, there are times when determining the difference can be frustrating for even a very experienced collector…

Determining Die Doubling from Other Forms of Doubling > Die Doubling (those abnormalities we love to collect!)

Posted by Stella Admin at 22 January, 2004, 10:55 am - (0) Comment
Categories: Determining Die Doubling

Die doubling is the type of doubling that exhibits a doubled image on the die itself, even before the coin is produced. Die doubling includes doubled dies, repunched dates, repunched mintmarks, overdates, over mintmarks and repunched letters. Typically die doubling will almost always exhibit splits in the serifs of the letters and/or numerals, with rounded, secondary images. Many Nineteenth Century coins have letters and numerals which are flat on… Continued...

Determining Die Doubling from Other Forms of Doubling > Strike Doubling

Posted by Stella Admin at 22 January, 2004, 10:50 am - (0) Comment
Categories: Determining Die Doubling

Strike doubling is the most often confused type of doubling and very often mis-identified as a doubled die or RPM. Not only do novices confuse this type of doubling with doubled dies, but specialists even disagree as to what the correct terminology should be. The term “strike doubling” is what I prefer and what I feel most accurately reflects the cause. Strike doubling is caused during the striking process. If… Continued...

Determining Die Doubling from Other Forms of Doubling > Other Forms Of Doubling

Posted by Stella Admin at 22 January, 2004, 10:45 am - (0) Comment
Categories: Determining Die Doubling

In addition to strike doubling, there are other forms of doubling that are often mistaken for die doubling. Among these is doubling caused by die fatigue, die polish, and doubling that is typical on coins designed by Longacre, possibly intentional. Continued...

Determining Die Doubling from Other Forms of Doubling > Summary

Posted by Stella Admin at 22 January, 2004, 10:40 am - (0) Comment
Categories: Determining Die Doubling

I hope this long, but educational article will help some of you in learning the difference between die doubling and other forms of doubling. However, the best learning tool one can use is experience. In that light, I would suggest that you look. and look carefully, at as many coins as possible, especially in the date ranges mentioned. Look especially carefully at proof quarters from 1968 and 1969 for strike… Continued...

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