I've never heard that term before. Did you come up with the term or have you heard it somewhere else?
Ejection doubling is really not "by the die" but more Ejection doubling is really not "by the die" but more a process of the coining mechanism - what I mean is it could be the obv. die, it could be the planchet, it could be the other die, it could be a drop in voltage, it could be the presses but what ejection really means is the image is slightly doubled because of the coining operation as the coin was ejected. It's so common as to really not warrent much more thought once you "get it" - that being said every coin is ejected but only some have ejection doubling but to name it caused by the die would not be as correct as saying it's ejected as a part of the coining process. I'm sitting here trying to think of an explanation that's better, how about this: "a pistol barrel shoots a bullet" Well yes "a barrel" shoots a bullet, but so does the firing pin, the breach, the feed ramp, the shooter, the magazine - if you say ejection doubling is caused "by the die" you are only giving a partial answer and reason for ejection doubling can be other than the die alone.
Ejection doubling, as I have read, is that it tends to produce "scooped" effects rather than the flatter "smear" effect of mechanical doubling from the striking stroke. Both are considered damage by "normal" collectors. Variety/error collectors think they add "salsa" to the bland normal coin :eating:. My opinion Jim
I knew what you meant and I guess it's a pretty descriptive term. My 12 y/o came up with "machine gun doubling," because of how rapid the process is. That's what we'd say yours is, machine gun doubling.