Circulated vs. Uncirculated Rolls

Come On! For anyone that has ever worked retail, you know that there are two kinds of coin rolls. The ones that you can pry open, and the ones you crack on the corner of the drawer and hope that the drawer does not break off!  For those of you that have not, let me...

Hub & Die Errors

OK last massive post on errors, at least for now. We have talked about what errors happen in the preparation and striking process, so now we finish with problems in the die itself. The machinery is working fine, but its elements have issues. (Don’t we all) Guess what,...

Striking errors

Although they are quite noticeable, I am not referring to striking in that way! (adjective: attracting attention by reason of being unusual, extreme, or prominent) After our talk on Planchet Errors, now we are going to talk about striking errors. Now there are many...

When an error is not a mistake

The OED lists the definition or Error as (1) A mistake  or   (1.3 technical) A measure of the estimated difference between the observed or calculated value of a quantity and its true value. In the world of coins, the 1.3 definition is much more important than the 1...

Classifying coins

Classifying coins or coin catalogs Ever wonder why when you see coin catalogs they are listed in a particular order? Well it is not just the OCD parts of us coming out, it is for ease and consistency. When numismatists (someone who studies coins) started getting...