That would be MD (mechanical doubling)... flat and shelf like. And not using my handle as an example, the correct term is "doubled die". We all know what you mean, but you and everyone before you has gotten the terminology correction for informational purposes. Welcome newbie.
I call it machine doubling and folks know what I mean. Both terms are correct. Same with double die and doubled die. Both terms are correct. Those that find the need to correct others over the use of these terms are too young to the hobby or are just full of something I can't say. Can you tell, I get ticked off with those that correct others over nothing.
You're too young to understand. Truth is, we are both correct. If we got a group of older folks in the same room, having drinks, they could argue the terms for days. All in good fun.
Yes.. Strike, Mechanical and Machine Doubling are all caused by a Strike and are considered Worthless Doubling. A Doubled Die is caused by true Hub Doubling when the image is Doubled on the Die.
"I call it machine doubling and folks know what I mean. Both terms are correct. Same with double die and doubled die. Both terms are correct. Those that find the need to correct others over the use of these terms are too young to the hobby or are just full of something I can't say. Can you tell, I get ticked off with those that correct others over nothing." No-the term "double die" is absolutely incorrect when referring to a coin that is hub doubled. The proper term is "doubled die." Double die means two dies. And I'm not "too young for the hobby"-I've been collecting for 57 years, and specializing in doubled dies for 30 of those years. If you're gonna discuss these coins PLEASE use the proper terminology.
By the way.. I have 31 years experience collecting Mint Errors and Varieties which include Doubled Dies!
We all agree that doubled die is the proper term today. At the same time the term double die has been used before any of us here even started collecting. Some of the biggest names in this hobby/business, still use either term, without a second thought. It's just not important. The meaning is understood.
