This one looks like Abe has a wheat stalk hanging in his mouth. I am assuming it is a air bubble in the plating.
Here are a couple of silly Lincoln newbie questions: What causes the gas bubbles exactly? Is it a defect in the die? Also, I don't think I am confident enough in detecting such bubbles in coinage. What am I looking for in contrast to say contact marks?
Lincoln are not copper plated zinc. If the plating separates from the zinc it results in the "bubbles". Bubbles are easy to see versus contact marks. Bubbles are just that. That means they are raised. Many can actually be pushed down and in essence popped. Contact marks are all indented .
Here are two detecting finds of mine. Been at it for one week. Found about five feet from each other. First one is 1926 no mint mark. And second is 1913 s coin. Thinking of doing electrolysis to them? This is the 1913... Opinions welcomed! I also came across a roll of 1914 and roll of 1919 s coins. If anyone looking for these send me a message. Sent from my SPH-M840 using Tapatalk
Here is one I have no idea about. I was think originally PMD but it does not go over Lincolns memorial on the Rev. So any ideas would be nice.
I think 1999 Was noted in Coin World . John Wexler and Wavysteps has this one a clash with a die number .
Thanks for taking time to explain the bubbles, rlm. I guess I was just confused as the conversation turned to explaining the wheat stalk from Gonzo's Lincoln as a gas bubble. I couldn't necessarily discern if it was raised and if not, it still seemed more like a line compared to what I would assume to be a round bubble indentation. Are these bubbles more common for certain dates? Oh, and to keep to the original purpose of the thread:
Actually, most "bubbles" are oblong to lines. That is where something has rubbed or scraped (or a missed application likely by brush) either the planchet or planchet stock during processing.
My dad bought this 1914-D for our Lincoln collection in 1964 from an old Ohio farmer. In fact dad bought 3000 lincolns in 2x2 cardboard folders from him also. All were 1909 to 1949 (including D & S mintmarks) , grades from Good to XF, & some AU's. The 1914-D was in a RED 2x2, but I had not seen it in 20+ years. A couple of monts ago, my step son was cleaning & organizing our garage. He found this old cardbox box full of 2x2 Linconl cents. I searched & sorted through them and found the 1914-D in the RED 2x2 folder just like it was stapled into the folder 50 years ago. So I decided it needed a better tomb for its final resting place. So I sent it off to NGC with some other submissions. It came back in a certified slab with F 12 BN Grade !
Are you talking about the planchet lines? If you are, I have yet to find an explanation. I have pictures of a greaser Zincoln I found, the strike is very, very weak and the lines are clearly part of the planchet and not part of the minting process. I've also seen a few other posts on the internet showing Lincolns with the planchet lines.
It has been awhile since I posted. Been real busy lately. Here is my latest addition to my 34-58 set. NGC MS67RD 1958 Lincoln with a current NGC population of 157/1. The individual who sent this in for grading really made out on this submission as I believe the graded 86 coins from this year at MS67RD. You never know when you might find that shinny roll of cents that will make the grade. Nice die polish lines on the obverse and reverse. I cannot wait too get this off later in the year to Robec for photo work