1984 Philadelphia Lincoln Memorial Cent / LMC With Large (Raised & Solid) Dot Above 9

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Author	Replies: 6 / Views: 2,187
JohnWayne007 Pillar of the Community Canada 1187 Posts	Posted 04/08/2021 01:10 am I was checking out a bag of Lincoln cents I have been gradually adding to and I came across this. At first I thought it was just a plating blister like the ones in front of Lincoln's head and nose, until I got it under the microscope, I tried poking it with a tooth pick and even my nail and it did not budge or decompress. My second thought was a die chip, however it looks fairly deep if that were the case. Any input would be appreciated. Finding and discovering modern Canadian doubled die varieties since 2018. 2023 Recent Publications: Modern Canadian Doubled Die Varieties - First Edition PDF & Paperback https://www.mcddv.ca - (New Site, Second Edition, Registry & Services coming fall 2026) Report this Post to the Staff

coop Bedrock of the Community United States 62064 Posts	Posted 04/08/2021 01:14 am If you have a tablet, look closely in the center of that raised area. You will see a very small piercing with a straight pin or needle, through the plating. This allows oxygen in, starting the zinc rot. That is what started that area to look like that. Edited by coop 04/08/2021 10:01 am Report this Post to the Staff
JohnWayne007 Pillar of the Community Canada 1187 Posts	Posted 04/08/2021 01:32 am Coop, it's not pierced, just a super convenient brown spot/blemish like the ones found N/E a couple mm from the dot. Finding and discovering modern Canadian doubled die varieties since 2018. 2023 Recent Publications: Modern Canadian Doubled Die Varieties - First Edition PDF & Paperback https://www.mcddv.ca - (New Site, Second Edition, Registry & Services coming fall 2026) Report this Post to the Staff
merclover Bedrock of the Community United States 10635 Posts	Posted 04/08/2021 02:42 am The photo needs to be a bit closer and a bit sharper. There appears to be a pin-point blemish in the centre of the bubble. If that is not a piercing coop mentioned then indeed you have a die chip. 1984 was a good year for zinc rot. Look for the plating to split around the numbers, and your zinc rot will emerge. Sorry I can't be a bit more specific, it's just these things take time. Report this Post to the Staff
JohnWayne007 Pillar of the Community Canada 1187 Posts	Posted 04/08/2021 08:55 am Quote: Sorry I can't be a bit more specific, it's just these things take time. No worries merclover! I will try and get closer/clearer photos later this afternoon when I'm done work, I have seen die chips similar to this before, like the 1964 Canadian dot penny. But I also know that 1983 and 1984 Lincoln zinc cents also had a lot of issues with zinc rot bubbles, if you notice there is a bubble under directly south of the "8" that I decompressed with my nail without an issue, as with two others infront of Lincolns face, when I tried with the big dot it was solid and did not budge so I assumed it was a die chip, but that perfectly round? Finding and discovering modern Canadian doubled die varieties since 2018. 2023 Recent Publications: Modern Canadian Doubled Die Varieties - First Edition PDF & Paperback https://www.mcddv.ca - (New Site, Second Edition, Registry & Services coming fall 2026) Report this Post to the Staff
Tanman2001 Pillar of the Community United States 4417 Posts	Posted 04/08/2021 09:01 am Reminds me of this one: http://www.doubleddie.com/2441137.html Report this Post to the Staff
mikediamond Pillar of the Community United States 2751 Posts	Posted 04/10/2021 4:07 pm This doesn't appear to be a plating blister or a corrosion dome. Instead it appears to be a perfectly circular die dent. Error coin writer and researcher. Report this Post to the Staff
	Replies: 6 / Views: 2,187

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1984 Philadelphia LMC With Large (Raised & Solid) Dot Above 9