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...