absence of uniformity

On Terrys example shown in Michaels book if you look closely there is a slanted line under the 9 in the date which is visible on my coin also shown on Peter's coin he posted on facebook a while back. The slight doubling? to the zero is shown on both coins, the shape and postion of all the teeth match, the height of the last 1 and its location over the gap are the features I noticed when comparing my coin to Terry's.

Starting a new thread for this coin because the forum software gave me an attachment space error on my previous post. Linking my original post here for the initial discussion background. I finally found one !

I cant upload a picture? Says " You have used all of the attachment space you are allowed per post. Manage Attachments to free up space" I have sent you a message with the image, many thanks.

Hi @terrysoldpennies can I ask you thoughts on this coin please. The Aa coin pictured left in my attached file is the coin you have. The right hand picture appears to match Aa, it appears shows the slight doubling? on the top of the 0. To me the right hand image appears to be Aa. Could you please let me know what you think? Many thanks

I would go with the RMM opinion, however you can do another test if you want to check yourself that doesn't involve working out the specific gravity. Simply place a strong rare earth magnet on the coin and tip the coin up to let the magnet slide off. If the the magnet free falls at normal speed its not Silver. (You need a strong small rare earth magnet for it to work) If the magnet slides down across the coin much slower at a constant speed its Silver. Worth thinking about metal sliding across the coin and potential damage /scratch you could place a piece of paper on the coin so the magnet doesn't cause any damage. Its called magnetic braking. The test would not work on a copper/silver plated coin because copper's high conductivity will cause the magnet to slow down although the magnet will still slide faster than silver.

Industrial rev - Coal fires - Sulfur dioxide?

Copper + Aluminium and water = galvanic corrosion, how do I know; my fuel filter head on my Landrover is Alu with copper sealer washers and galvanic corrosion ate away the ports on the fuel filter head. Its a slow process going by how long it lasted.

So, between your coin and the others like Richard's, Paddy's, and the 49 others I looked at I didn't notice a difference in the lighthouse. Instead, the main difference was the fingers on the trident. The list of similarities I shared in my last post are identifying features between your coin and the single coin I found (1 of 50). These two appear to be the same, showing the same finger configuration and arrangement. The list of die markers possibly confirms that these two coins are from the same die. However, I don't know why the fingers look different on these two coins compared to all the rest. Could it be explained by something as simple as die wear or deterioration causing the deformed fingers seen on the majority? I don't know enough to say for sure. Hopefully, a member with more knowledge can offer some insights into the cause of this feature. Either way, I'm pleased you are happy with it!

This image shows the single coin I found out of 50 coins studied next to Citizen H coin. To further show they are the same I have circled the die characteristics seen on both coins; - Break in the linear circle just above the 1st N of Penny. - The aparent line in the exergue to the left of the 1. - The Kink in the linear circle to the left of the lighthouse and undersized teeth. - And the small die cracks shown on the teeth by Britannia's foot, between the two coins these defects are not exactly the same on both. And ofcourse the fingers on the trident.

Its hard to be sure from the images but is there a larger gap between the right hand prong of the trident and the linear circle on the 1/50 coin and Citizen H coin?

I found 1 that's similar. Thats 1/50 coins checked, the rest match those of Richard and Paddy.

@Citizen H when I was looking at your coin I noticed this: (The right image is your coin) There appears to be a difference in the arrangement of the fingers.

Just butthurt you got called out and exposed for talking rubbish about looking at 1000 coins 🤣 It's fascinating to see you preach about the obligation to welcome new collectors in one breath, and then hurl insult because someone simply offered findings of 40 coins looked at 4 examples found.

Im going to stop there at 4/40.

As sample size grows the numbers are coming down 4 of 36 now.