HELLO I HAVE THIS 1979 d CENT, I THINK THAT THIS IS TO BE A ddr, BUT I CANT FIND ANY THING ABOUT IT. DOES ANYONE KNOW? THANKS FOR YOUR HELP.
To answer your question: Machine Dublin also known as MD or mechanical doubling, shift doubling, or shift doubling is not caused by the die itself. Machine doubling is created when the die shifts slightly as a coin is being struck. Machine doubling is the result of loose mechanical parts that caused a poor die strike. These are very common and the coin is only worth face value.
okay then well im still very confused not so much as the type of doubling but as to how im going to tell them apart, iun the future. so im sure there be lots of these types of post from mew thanks for everyone's help though ... are any of you guys interested in MORGANS OR PEACE $ i have about 50, of each. and a few seated and a few standing. let me know if you guys like those things
Welcome to CT. I suggest that you read up on the minting process, and how dies are made. There are also various videos on these subjects online. This site has good info https://doubleddie.com/ . Doubling, in all it's forms, is a very confusing subject for beginners and some experienced collectors alike. Keep the coins with their specific anomalies documented and use them for future reference when you come across another one. Good luck and happy huntimg